All Categories

Major Cloud Providers

App Engine

28 frontend instance hours per day, nine backend instance hours per day

Cloud Firestore

1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day

Compute Engine

1 non-preemptible e2-micro, 30GB HDD, 5GB snapshot storage (restricted to certain regions), 1 GB network egress from North America to all region destinations (excluding China and Australia) per month

Cloud Storage

5GB, 1GB network egress

Cloud Shell

Web-based Linux shell/primary IDE with 5GB of persistent storage. 60 hours limit per week

Cloud Pub/Sub

10GB of messages per month

Cloud Functions

2 million invocations per month (includes both background and HTTP invocations)

Cloud Run

2 million requests per month, 360,000 GB-seconds memory, 180,000 vCPU-seconds of compute time, 1 GB network egress from North America per month

Google Kubernetes Engine

No cluster management fee for one zonal cluster. Each user node is charged at standard Compute Engine pricing

BigQuery

1 TB of querying per month, 10 GB of storage each month

Cloud Build

120 build-minutes per day

Cloud Source Repositories

Up to 5 Users, 50 GB Storage, 50 GB Egress

Google Colab

Free Jupyter Notebooks development environment.

idx.dev

CloudFront

1TB egress per month and 2M Function invocations per month

CloudWatch

10 custom metrics and ten alarms

CodeBuild

100min of build time per month

CodeCommit

5 active users,50GB storage, and 10000 requests per month

CodePipeline

1 active pipeline per month

DynamoDB

25GB NoSQL DB

EC2

750 hours per month of t2.micro or t3.micro(12mo). 100GB egress per month

EBS

30GB per month of General Purpose (SSD) or Magnetic(12mo)

Elastic Load Balancing

750 hours per month(12mo)

RDS

750 hours per month of db.t2.micro, db.t3.micro, or db.t4g.micro, 20GB of General Purpose (SSD) storage, 20GB of storage backups(12 mo)

S3

5GB Standard object storage, 20K Get requests and 2K Put requests(12 mo)

Glacier

10GB long-term object storage

Lambda

1 million requests per month

SNS

1 million publishes per month

SES

3.000 messages per month (12mo)

SQS

1 million messaging queue requests

Virtual Machines

1 B1S Linux VM, 1 B1S Windows VM (12mo)

App Service

10 web, mobile, or API apps (60 CPU minutes/day)

Functions

1 million requests per month

DevTest Labs

Enable fast, easy, and lean dev-test environments

Active Directory

500,000 objects

Active Directory B2C

50,000 monthly stored users

Azure DevOps

5 active users, unlimited private Git repos

Azure Pipelines

10 free parallel jobs with unlimited minutes for open source for Linux, macOS, and Windows

Microsoft IoT Hub

8,000 messages per day

Load Balancer

1 free public load-balanced IP (VIP)

Notification Hubs

1 million push notifications

Bandwidth

15GB Inbound(12mo) & 5GB egress per month

Cosmos DB

25GB storage and 1000 RUs of provisioned throughput

Static Web Apps

Build, deploy, and host static apps and serverless functions with free SSL, Authentication/Authorization, and custom domains

Storage

5GB LRS File or Blob storage (12mo)

Cognitive Services

AI/ML APIs (Computer Vision, Translator, Face detection, Bots, etc) with free tier including limited transactions

Cognitive Search

AI-based search and indexation service, free for 10,000 documents

Azure Kubernetes Service

Managed Kubernetes service, free cluster management

Event Grid

100K ops/month

Block Volume

2 volumes, 200 GB total (used for compute)

Object Storage

10 GB

Load balancer

1 instance with 10 Mbps

Databases

2 DBs, 20 GB each

Monitoring

500 million ingestion data points, 1 billion retrieval datapoints

Bandwidth

10 TB egress per month, speed limited to 50 Mbps on x64-based VM, 500 Mbps * core count on ARM-based VM

Public IP

2 IPv4 for VMs, 1 IPv4 for load balancer

Notifications

1 million delivery options per month, 1000 emails sent per month

Cloudant database

1 GB of data storage

Db2 database

100MB of data storage

API Connect

50,000 API calls per month

Availability Monitoring

3 million data points per month

Log Analysis

500MB of daily log

Application Services

Free DNS for an unlimited number of domains, DDoS Protection, CDN along with free SSL, Firewall rules and page rules, WAF, Bot Mitigation, Free Unmetered Rate Limiting - 1 rule per domain, Analytics, Email forwarding

Zero Trust & SASE

Up to 50 Users, 24 hours of activity logging, three network locations

Cloudflare Tunnel

You can expose locally running HTTP port over a tunnel to a random subdomain on trycloudflare.com use [Quick Tunnels](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/run-tunnel/trycloudflare), No account required. More features (TCP tunnel, Load balancing, VPN) in [Zero Trust](https://www.cloudflare.com/products/zero-trust/) Free Plan.

Workers

Deploy serverless code for free on Cloudflare's global network—100k daily requests.

Workers KV

100k read requests per day, 1000 write requests per day, 1000 delete requests per day, 1000 list requests per day, 1 GB stored data

R2

10 GB per month, 1 million Class A operations per month, 10 million Class B operations per month

D1

5 million rows read per day, 100k rows written per day, 1 GB storage

Pages

Develop and deploy your web apps on Cloudflare's fast, secure global network. Five hundred monthly builds, 100 custom domains, Integrated SSL, unlimited accessible seats, unlimited preview deployments, and full-stack capability via Cloudflare Workers integration.

Queues

1 million operations per month

TURN

Source Code Repos

Bitbucket

Unlimited public and private Git repos for up to 5 users with Pipelines for CI/CD

chiselapp.com

Unlimited public and private Fossil repositories

codebasehq.com

One free project with 100 MB space and two users

Codeberg

Unlimited public and private Git repos for free and open-source projects (with unlimited collaborators). Powered by [Forgejo](https://forgejo.org/). Static website hosting with [Codeberg Pages](https://codeberg.page/). CI/CD hosting with [Codeberg's CI](https://docs.codeberg.org/ci/). Translating hosting with [Codeberg Translate](https://translate.codeberg.org/). Includes Package and Container hosting, Project management, and Issue Tracking

GitGud

Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. CI/CD not provided.

GitHub

Unlimited public repositories and unlimited private repositories (with unlimited collaborators). Includes CI/CD, Development Environment, Static Hosting, Package and Container hosting, Project management and AI Copilot

gitlab.com

Unlimited public and private Git repos with up to 5 collaborators. Includes CI/CD, Static Hosting, Container Registry, Project Management and Issue Tracking

framagit.org

Framagit is the software forge of Framasoft based on the Gitlab software includes CI, Static Pages, Project pages and Issue tracking.

heptapod.net

Heptapod is a friendly fork of GitLab Community Edition providing support for Mercurial

ionicframework.com

Repo and tools to develop applications with Ionic; also you have an ionic repo

NotABug

NotABug.org is a free-software code collaboration platform for freely licensed projects, Git-based

OSDN

OSDN.net is a free-of-charge service for open-source software developers, offering SVN/Git/Mercurial/Bazaar/CVS repositories.

Pagure.io

Pagure.io is a free and open source software code collaboration platform for FOSS-licensed projects, Git-based

perforce.com

Free 1GB Cloud and Git, Mercurial, or SVN repositories.

pijul.com

Unlimited free and open source distributed version control system. Its distinctive feature is based on a sound theory of patches, which makes it easy to learn, use, and distribute. Solves many problems of git/hg/svn/darcs.

plasticscm.com

Free for individuals, OSS, and nonprofit organizations

projectlocker.com

One free private project (Git and Subversion) with 50 MB of space

RocketGit

Repository Hosting based on Git. Unlimited Public and private repositories.

savannah.gnu.org

Serves as a collaborative software development management system for free Software projects (for GNU Projects)

savannah.nongnu.org

Serves as a collaborative software development management system for free Software projects (for non-GNU projects)

APIs, Data, and ML

JSONGrid

Free tool to Visualize, Edit, Filter complex JSON data into beautiful tabular Grid. Save and Share JSON data over link link.

Zerosheets

Turn your Google Sheets spreadsheets into powerful API`s to rapidly develop prototypes, websites, apps and more. 500 requests per month available for free.

IP.City

100 Free IP geolocation requests per day

Abstract API

API suite for various use cases, including IP geolocation, gender detection, or email validation.

Apify

Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.

APITemplate.io

Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML is required. The free plan comes with 50 images/month and three templates.

APIToolkit.io

All the tools you need to fully understand what's going on in your APIs and Backends. With automatic API contract validation and monitoring. The free plan covers servers with up to 20,000 requests per month.

APIVerve

Get instant access to over 120+ APIs for free, built with quality, consistency, and reliability in mind. The free plan covers up to 50 API Tokens per month.

Arize AI

Machine learning observability for model monitoring and root-causing issues such as data quality and performance drift. Free up to two models.

Atlas toolkit

Lightweight library to develop single-page web applications that are instantly accessible. Available for Java, Node.js, Perl, Python, and Ruby.

Beeceptor

Mock a rest API in seconds, fake API response and much more. Free 50 requests per day, public dashboard, open endpoints (anyone with a dashboard link can view submissions and answers).

bigml.com

Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task.

Browse AI

Extracting and monitoring data on the web. Fifty credits per month for free.

BrowserCat

Headless browser API for automation, scraping, AI agent web access, image/pdf generation, and more. Free plan with 1k requests per month.

Bruzu

Automate Image production. Generate tons of Image variants with API, Integrations, or nocode sheet. API is FREE with a watermark.

Calendarific

Enterprise-grade Public holiday API service for over 200 countries. The free plan includes 1,000 calls per month.

Canopy

GraphQL API for Amazon.com product, search, and category data. The free plan includes 100 calls per month.

Clarifai

Image API for custom face recognition and detection. Able to train AI models. The free plan has 5,000 calls per month.

Cloudmersive

Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 800 calls/month.

Colaboratory

Free web-based Python notebook environment with Nvidia Tesla K80 GPU.

Collect2

Create an API endpoint to test, automate, and connect webhooks. The free plan allows for two datasets, 2000 records, one forwarder, and one alert.

CometML

The MLOps platform for experiment tracking, model production management, model registry, and complete data lineage, covering your workflow from training to production. Free for individuals and academics.

Commerce Layer

Composable commerce API that can build, place, and manage orders from any front end. The developer plan allows 100 orders per month and up to 1,000 SKUs for free.

Conversion Tools

Online File Converter for documents, images, video, audio, and eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). The free tier is limited by file size and number of conversions per day.

Country-State-City Microservice API

API and Microservice to provides a wide range of information including countries, regions, provinces, cities, postal codes, and much more. The free tier includes up to 100 requests per day.

Coupler

Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, and collect and back up insights. The free plan has unlimited users, 100 runs with 1000 monthly rows, and unlimited integrations.

CraftMyPDF

Auto-Generate PDF documents from reusable templates with a drop-and-drop editor and a simple API. The free plan comes with 100 PDFs/month and three templates.

CurlHub

Proxy service for inspecting and debugging API calls. The free plan includes 10,000 requests per month.

CurrencyScoop

Realtime currency data API for fintech apps. The free plan includes 5,000 calls per month.

Cube

Cube helps data engineers and application developers access data from modern data stores, organize it into consistent definitions, and deliver it to every application. The fastest way to use Cube is with Cube Cloud, which has a free tier with 1GB of data passing through each month.

Data Dead Drop

Simple, free file sharing. Data self-destroys after access. Upload and download data via the browser or your favorite command line client.

Data Fetcher

Connect Airtable to any application or API with no code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. The free plan includes 100 runs per month.

Dataimporter.io

Tool for connecting, cleaning, and importing data into Salesforce. Free Plan includes up to 20,000 records per month.

Datalore

Python notebooks by Jetbrains. Includes 10 GB of storage and 120 hours of runtime each month.

Data Miner

A browser extension (Google Chrome, MS Edge) for data extraction from web pages CSV or Excel. The free plan gives you 500 pages/month.

Datapane

API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools.

DB-IP

Free IP geolocation API with 1k request per IP per day.lite database under the CC-BY 4.0 License is free too.

DB Designer

Cloud-based Database schema design and modeling tool with a free starter plan of 2 Database models and ten tables per model.

DeepAR

Augmented reality face filters for any platform with one SDK. The free plan provides up to 10 monthly active users (MAU) and tracks up to 4 faces

Deepnote

A new data science notebook. Jupyter is compatible with real-time collaboration and running in the cloud. The free tier includes unlimited personal projects, up to 750 hours of standard hardware, and teams with up to 3 editors.

Diggernaut

Cloud-based web scraping and data extraction platform for turning any website to the dataset or working with it as an API. The free plan includes 5K page requests monthly.

Disease.sh

A free API providing accurate data for building the Covid-19 related useful Apps.

Doczilla

SaaS API empowering the generation of screenshots or PDFs directly from HTML/CSS/JS code. The free plan allows 250 documents month.

Doppio

Managed API to generate and privately store PDFs and Screenshots using top rendering technology. The free plan allows 400 PDFs and Screenshots per month.

dreamfactory.com

Open source REST API backend for mobile, web, and IoT applications. Hook up any SQL/NoSQL database, file storage system, or external service, and it instantly creates a comprehensive REST API platform with live documentation and user management.

DynamicDocs

Generate PDF documents with JSON to PDF API based on LaTeX templates. The free plan allows 50 API calls per month and access to a library of templates.

Efemarai

Testing and debugging platform for ML models and data. Visualize any computational graph. Free 30 debugging sessions per month for developers.

ExtendsClass

Free web-based HTTP client to send HTTP requests.

Export SDK

PDF generator API with drag-and-drop template editor that provides an SDK and no-code integrations. The free plan has 250 monthly pages, unlimited users, and three templates.

Fern

Use your API definition to generate SDKs in popular languages, and generate API reference documentation webpages. Add Markdown pages to your API reference and host them with Fern for a full documentation solution. OpenAPI fully supported.

file.coffee

A platform where you can store up to 15MB/file (30/MB file with an account).

Financial Data

Stock market and financial data API. Free plan allows 300 requests per day.

FraudLabs Pro

Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. The Free Micro plan has 500 transactions per month.

Geekflare API

Geekflare API lets you take screenshots, audit websites, TLS scan, DNS lookup, test TTFB, and more. The free plan offers 3,000 API requests.

GeoCod

Free geocoding API: Convert postal addresses into geographic coordinates or convert geographic coordinates into postal addresses (reverse geocoding).

GeoDataSource

Location search service looks up city names using latitude and longitude coordinates. Free API queries up to 500 times per month.

Geolocated.io

IP Geolocation API with multi-continent servers, offering a forever free plan with 60000 requests per month for hobbyists.

Glitterly

Programmatically generate dynamic images from base templates. Restful API and nocode integrations. The free tier comes with 50 images/month and five templates.

GoodData

Data as a Service - Create interactive and insightful dashboards. The free tier comes with five workspaces and 100 MB/workspace.

Hex

a collaborative data platform for notebooks, data apps, and knowledge libraries. Free community version with up to 3 authors and five projects. One compute profile per author with 4GB RAM.

Hook0

Hook0 is an open-source Webhooks-as-a-service (WaaS) that makes it easy for online products to provide webhooks. Dispatch up to 3,000 events/month with seven days of history retention for free.

Hoppscotch

A free, fast, and beautiful API request builder.

Hybiscus

Build pdf reports using a simple declarative API. The free tier includes up to 100 single-page reports per month with the ability to customize color palettes and fonts.

Invantive Cloud

Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations in data volumes.

ipaddress.sh

Simple service to get a public IP address in different [formats](https://about.ipaddress.sh/).

ipbase.com

IP Geolocation API - Forever free plan that spans 150 monthly requests.

IP Geolocation

IP Geolocation API - Forever free plan for developers with 30k requests per month (1k/day) limit.

IP Geolocation API

IP Geolocation API from Abstract - Extensive free plan allowing 20,000 monthly requests.

IP2Location

Freemium IP geolocation service. LITE database is available for free download. Import the database in the server and perform a local query to determine the city, coordinates, and ISP information.

IP2Location.io

Freemium, fast and reliable IP geolocation API to determine geolocation data like city, coordinates, ISP, etc. The free plan is available with 30k credits per month. Subscribe to paid plans for more advanced features or contact us for a personalized plan.

ipapi

IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup.

ipapi.is

A reliable IP Address API from Developers for Developers with the best Hosting Detection capabilities that exist. The free plan offers 1000 lookups without signup.

IPinfo

Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.

BigDataCloud

Provides fast, accurate, and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.

IPTrace

An embarrassingly simple API that provides your business with reliable and helpful IP geolocation data.

JSON2Video

A video editing API to automate video marketing and social media videos, programmatically or with no code.

JSON IP

Returns the Public IP address of the client it is requested from. No registration is required for the free tier. Using CORS, data can be requested using client-side JS directly from the browser. Useful for services monitoring change in client and server IPs. Unlimited Requests.

JSON Serve

A free service that helps developers to store JSON objects and use that JSON as a REST API in their app.

JSONing

Create a fake REST API from a JSON object, and customize HTTP status codes, headers, and response bodies.

konghq.com

API Marketplace and powerful private and public API tools. With the free tier, some features such as monitoring, alerting, and support, are limited.

Kreya

Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.

Lightly

Improve your machine-learning models by using the correct data. Use datasets of up to 1000 samples for free.

LoginLlama

A login security API to detect fraudulent and suspicious logins and notify your customers. Free for 1,000 logins per month.

MailboxValidator

Email verification service using real mail server connection to confirm valid email. The free API plan has 300 verifications per month.

Market Data API

Provides real-time and historical financial data for stocks, options, mutual funds, and more. The Free Forever API tier allows for 100 daily API requests at no charge.

Tomorrow.io Weather API

Offers free plan of weather API. Provides accurate and up-to-date weather forecasting with global coverage, historical data and weather monitoring solutions.

Meteosource Weather API

global weather API for current and forecasted weather data. Forecasts are based on a machine learning combination of more weather models to achieve better accuracy. The free plan comes with 400 calls per day.

microlink.io

Mindee

Mintlify

Modern standard for API documentation. Beautiful and easy-to-maintain UI components, in-app search, and interactive playground. Free for 1 editor.

monkeylearn.com

Text analysis with machine learning, free 300 queries/month.

MockAPI

MockAPI is a simple tool that lets you quickly mock up APIs, generate custom data, and perform operations using a RESTful interface. MockAPI is meant to be a prototyping/testing/learning tool. One project/4 resources per project for free.

Mockfly

Mockfly is a trusted development tool for API mocking and feature flag management. Quickly generate and control mock APIs with an intuitive interface. The free tier offers 500 requests per day.

Mocki

A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to develop and use without signup.

Mocko.dev

Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integration tests.

Mocky

A simple web app to generate custom HTTP responses for mocking HTTP requests. Also available as [open source](https://github.com/julien-lafont/Mocky).

reqres.in

A Free hosted REST-API ready to respond to your AJAX requests.

microenv.com

Create fake REST API for developers with the possibility to generate code and app in a docker container.

Multi-Exit IP Address Checker

A free and simple tool to check your exit IP address across multiple nodes and understand how your IP appears to different global regions and services. Useful for testing rule-based DNS splitting tools such as Control D.

neptune.ai

Log, store, display, organize, compare, and query all your MLOps metadata. Free for individuals: 1 member, 100 GB of metadata storage, 200h of monitoring/month

News API

Search news on the web with code, and get JSON results. Developers get 3,000 queries free each month.

GoCardless

Free open banking data API. PSD2. Connect 2300+ banks with your app/software in EU+UK.

Nyckel

Train, deploy, and invoke image and text ML models. Free training with up to 5,000 pieces of training data. 1000 model invokes per month free.

Observable

a place to create, collaborate, and learn with data. Free: Unlimited notebooks, Unlimited publishing, Five editors per notebook.

OCR.Space

An OCR API parses image and pdf files that return the text results in JSON format. Twenty-five thousand requests per month are free.

Duply.co

Create dynamic images from API & URL, design template once and reuse it. The free tier offers 70 images/month creation from API & URL and Up to 100 through Form.

OpenAPI3 Designer

Visually create Open API 3 definitions for free.

parsehub.com

Extract data from dynamic sites, turn dynamic websites into APIs, five projects free.

PDFBolt

Developer-focused PDF generation API designed with privacy in mind. It offers Stripe-inspired documentation and includes 500 free PDF conversions per month.

pdfEndpoint.com

Effortlessly convert HTML or URLs to PDF with a simple API. One hundred conversions per month for free.

PDF-API.io

PDF Automation API, visual template editor or HTML to PDF, dynamic data integration, and PDF rendering with an API. The free plan comes with one template, 100 PDFs/month.

Pixela

Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible.

Postbacks

Request HTTP callbacks for a later time. Eight thousand free requests on signup.

Postman

Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.

Insomnia

Open-source API client for designing and testing APIs, it supports REST and GraphQL

PrefectCloud

A complete platform for dataflow automation. All plans include 20,000 free runs every month. That's enough to power ETL for most small businesses.

Preset Cloud

A hosted Apache Superset service. Forever free for teams of up to 5 users, featuring unlimited dashboards and charts, a no-code chart builder, and a collaborative SQL editor.

PromptLeo

Prompt engineering platform for creators and developers. It offers a prompt engineering library, forms, and API. The free plan provides one prompt formation, one prompt API endpoint, and 30 generations per month.

PromptLoop

PromptLoop delivers 10X easier AI web scraping with near-zero adoption time, 85%+ time saved on existing workflows, and operates 4X faster than manual research without compromise and includes a REST API endpoint for all research tasks. The first 1,000 credits are free each month.

Proxed AI

Secure AI APIs in iOS - No SDK, Just Change Your API URL. Offers 1000 free API calls per month.

Crawlbase

Crawl and scrape websites without proxies, infrastructure, or browsers. We solve captchas for you and prevent you from being blocked. The first 1000 calls are free of charge.

Public-Apis Github Repo

A list of free public APIs.

Supportivekoala

Allows you to autogenerate images by your input via templates. The free plan allows you to create up to 100 images per week.

QuickMocker

Manage online fake API endpoints under your own subdomain, forward requests to localhost URL for webhooks development and testing, use RegExp and multiple HTTP methods for URL path, prioritize endpoints, more than 100 shortcodes (dynamic or fake response values) for response templating, import from OpenAPI (Swagger) Specifications in JSON format, proxy requests, restrict endpoint by IP address and authorization header. The free account provides one random subdomain, ten endpoints, 5 RegExp URL paths, 50 shortcodes per endpoint, 100 requests per day, and 50 history records in the requests log.

Rapidapi

World's Largest API Hub Millions of developers find and connect to thousands of APIs, API Development using fun challenges (with solutions!) and interactive examples.

RequestBin.com

Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe recommendations from webhooks and other services.

Roboflow

create and deploy a custom computer vision model with no prior machine learning experience required. The free tier includes up to 1,000 free source images.

ROBOHASH

Web service to generate unique and cool images from any text.

SaturnCloud

Data science cloud environment that allows running Jupyter notebooks and Dask clusters. Thirty hours of free computation and 3 hours of Dask per month.

Scraper's Proxy

Simple HTTP proxy API for scraping. Scrape anonymously without having to worry about restrictions, blocks, or captchas. First 100 successful scrapes per month free including javascript rendering (more available if you contact support).

ScrapingAnt

Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free plans are available.

ScraperBox

Undetectable web scraping API using real Chrome browsers and proxy rotation. Use a simple API call to scrape any web page. The free plan has 1000 requests per month.

ScrapingDog

Scrapingdog handles millions of proxies, browsers, and CAPTCHAs to provide you with the HTML of any web page in a single API call. It also includes Web Scraper for Chrome & Firefox and software for instant scraping demand. Free plans are available.

scrapinghub.com

Data scraping with visual interface and plugins. The free plan includes unlimited scraping on a shared server.

Simplescraper

Trigger your webhook after each operation. The free plan includes 100 cloud scrape credits.

Select Star

is an intelligent data discovery platform that automatically analyzes and documents your data. Free light tier with 1 Data Source, up to 100 Tables and 10 Users.

Sheetson

Instantly turn any Google Sheets into a RESTful API. Free plan available.

Shipyard

Low-code data orchestration platform for the cloud. Build with a mix of low-code templates and your code (Python, Node.js, Bash, SQL). Our free developer plan offers 10 hours of runtime every month for one user - more than enough to automate multiple workflows.

shrtcode API

Free URL Shortening API without authorization and no request limits.

SerpApi

Real-time search engine scraping API. Returns structured JSON results for Google, YouTube, Bing, Baidu, Walmart, and many other machines. The free plan includes 100 successful API calls per month.

SmartParse

SmartParse is a data migration and CSV to API platform that offers time- and cost-saving developer tools. The Free tier includes 300 Processing Units per month, Browser uploads, Data quarantining, Circuit breakers, and Job Alerts.

Sofodata

Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. The free plan includes 2 APIs and 2,500 API calls per month. You don't need a credit card.

Sqlable

A collection of free online SQL tools, including an SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds.

Stoplight

Saas for collaboratively designing and documenting for APIs. The free plan offers free design, mocking, and documentation tools.

Svix

Webhooks as a Service. Send up to 50,000 messages/month for free.

TemplateTo

Auto-Generate PDF/TXT documents from reusable templates with our drop-and-drop editor and simple API. The free plan comes with 450 PDFs/month and three templates.

TinyMCE

rich text editing API. Core features are free for unlimited usage.

Treblle

Treblle helps teams build, ship, and govern APIs. With advanced API log aggregation, observability, docs, and debugging. You get all features for free, but there is a limit of up to 250k requests per month on the free tier.

Webhook Store

Tool for storing third-party webhooks and debug them on localhost (ngrok style). Open source and self-hostable. Free personal domain *username*.github.webhook.store, free public domains *anything*.webhook.store.

Weights & Biases

The developer-first MLOps platform. Build better models faster with experiment tracking, dataset versioning, and model management. Free tier for personal projects only, with 100 GB of storage included.

wit.ai

NLP for developers.

wolfram.com

Built-in knowledge-based algorithms in the cloud.

wrapapi.com

Turn any website into a parameterized API. 30k API calls per month.

ZenRows

Web Scraping API & proxy server that bypasses any anti-bot solution while offering javascript rendering, rotating proxies, and geotargeting. The free tier of 1000 API calls.

Zenscrape

Web scraping API with headless browsers, residentials IPs, and straightforward pricing. One thousand free API calls/month and extra credits for students and non-profits.

IPQuery

Unlimited IP API for developers, no ratelimits, or pricing.

ip-api

IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan.

WebScraping.AI

Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. Two thousand free API calls per month.

Zipcodestack

Free Zip Code API and Postal Code Validation. Ten thousand free requests/month.

huggingface.co

Build, train, and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.

vatcheckapi.com

Simple and free VAT number validation API. Five hundred free requests per month.

numlookupapi.com

Free phone number validation API - 100k free requests / month.

Volca

Free API providing lists of technologies such as programming languages and database systems. Unlimited free requests.

Query.me

Collaborative data notebooks that execute script-like and allow to fetch and send data via SQL, API, and many custom blocks, like Slack and Email. Free for small Teams.

ERD Lab

Free cloud-based entity relationship diagram (ERD) tool made for developers.

What The Diff

AI-powered code review assistant. The free plan has a limit of 25,000 monthly tokens (~10 PRs).

Zipcodestack

Free Zip Code API and Postal Code Validation. Ten thousand free requests/month.

OpenWeb Ninja

Extremely comprehensive real-time SERP and public data APIs: Google Search, Shopping, Jobs, Images, Lens, News, Google Maps Businesses / Places, Reviews, Photos, Website Emails and Social Contacts Scraper, Amazon, Yelp and more. All APIs include a free tier with 100 to 200 free monthly requests.

Tavily AI

API for online serach and rapid insights and comprehensive research, with the capability of organization of research results. 1000 request/month for the Free tier with No credit card required.

Composio

Integration platform for AI Agents and LLMs. Integrate over 200+ tools across the agentic internet.

WeatherXu

Global weather data including current conditions, hourly and daily forecasts, and weather alerts via our API. Integrating AI models and ML systems to analyze and combine multiple weather models to deliver improved forecast accuracy. Free tier includes 10,000 API calls/month.

Zuplo

Free API Management platform to design, build, and deploy APIs to the Edge. Add API Key authentication, rate limiting, developer documentation and Monetization to any API in minutes. OpenAPI-native and fully-programmable with web standard apis & Typescript. The free plan offers up to 10 projects, unlimited production edge environments, 250 API keys, 100K monthly requests, and 1GB egress.

Amazon SageMaker

A cloud-based ML platform with JupyterLab and terminal access. The free tier includes 8 hours of CPU (max 4 hours per session) or 4 hours of GPU per day.

Artifact Repos

Artifactory

An artifact repository that supports numerous package formats like Maven, Docker, Cargo, Helm, PyPI, CocoaPods, and GitLFS. Includes package scanning tool XRay and CI/CD tool Pipelines (formerly Shippable) with a free tier of 2,000 CI/CD minutes per month.

central.sonatype.org

The default artifact repository for Apache Maven, SBT, and other build systems.

cloudrepo.io

Cloud-based, private and public, Maven and PyPi repositories. Free for open-source projects.

cloudsmith.io

Simple, secure, and centralized repository service for Java/Maven, RedHat, Debian, Python, Ruby, Vagrant, and more. Free tier + free for open source.

jitpack.io

Maven repository for JVM and Android projects on GitHub, free for public projects.

packagecloud.io

Easy to use repository hosting for Maven, RPM, DEB, PyPi, NPM, and RubyGem packages (has free tier).

repsy.io

1 GB Free private/public Maven Repository.

Gemfury

Private and public artifact repos for Maven, PyPi, NPM, Go Module, Nuget, APT, and RPM repositories. Free for public projects.

paperspace

Build & scale AI models, Develop, train, and deploy AI applications, free plan: public projects, 5Gb storage, basic instances.

RepoForge

Private cloud-hosted repository for Python, Debian, NPM packages and Docker registries. Free plan for open source/public projects.

RepoFlow

RepoFlow Simplifies package management with support for npm, PyPI, Docker, Go, Helm, and more. Try it for free with 10GB storage, 10GB bandwidth, 100 packages, and unlimited users in the cloud, or self-hosted for personal use only.

Tools for Teams and Collaboration

3Cols

A free cloud-based code snippet manager for personal and collaborative code.

Bitwarden

The easiest and safest way for individuals, teams, and business organizations to store, share, and sync sensitive data.

Braid

Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also, it provides a self-hostable open-source version.

cally.com

Find the perfect time and date for a meeting. Simple to use, works great for small and large groups.

Calendly

Calendly is the tool for connecting and scheduling meetings. The free plan provides 1 Calendar connection per user and Unlimited sessions. Desktop and Mobile apps are also offered.

Discord

Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.

Telegram

Telegram is for everyone who wants fast, reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps, and powerful file-sharing options.

Dubble

Free Step-by-Step Guide creator. Take screenshots, document processes and colloborate with your team. Also supports async screen recording.

Duckly

Talk and collaborate in real time with your team. Pair programming with IDE, terminal sharing, voice, video, and screen sharing. Free for small teams.

Dyte

The most developer-friendly live video & audio SDK, featuring collaborative plugins to enhance productivity and engagement. The free tier includes monthly 10,000 minutes of live video/audio usage.

evernote.com

Tool for organizing information. Share your notes and work together with others

Fibery

Connected workspace platform. Free for single users, up to 2 GB disk space.

flock.com

A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations

Gather

A better way to meet online. Centered around fully customizable spaces, Gather makes spending time with your communities just as easy as real life. Free for up to 10 concurrent users.

gokanban.io

Syntax-based, no registration Kanban Board for fast use. Free with no limitations.

flat.social

Interactive customizable spaces for team meetings & happy hours socials. Unlimited meetings, free up to 8 concurrent users.

GitDailies

Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, and custom alert builder. The free tier has unlimited users, three repos, and 3 alert configs.

gitter.im

Chat, for GitHub. Unlimited public and private rooms, free for teams of up to 25

Hackmd.io

Real time collaboration & writing tool for markdown format docs/files. Like Google Docs but for markdown files. Free unlimited number of "notes", but the number of collaborators (invitee) for private notes & template [will be limited](https://hackmd.io/pricing).

hangouts.google.com

One place for all your conversations, for free, need a Google account

HeySpace

Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.

helplightning.com

Help over video with augmented reality. Free without analytics, encryption, support

ideascale.com

Allow clients to submit ideas and vote, free for 25 members in 1 community

Igloo

Internal portal for sharing documents, blogs, calendars, etc. Free for up to 10 users.

Keybase

Keybase is a FOSS alternative to Slack; it keeps everyone's chats and files safe, from families to communities to companies.

Google Meet

Use Google Meet for your business's online video meeting needs. Meet provides secure, easy-to-join online meetings.

/meet for Slack

Start Google Meetings directly from Slack by using /meet in any channel, group, or DM. Free without any limitations.

Livecycle

Livecycle is an inclusive collaboration platform that makes workflows frictionless for cross-functional product teams and open-source projects.

Lockitbot

Reserve and lock shared resources within Slack like Rooms, Dev environments , servers etc. Free for upto 2 resources

MarkUp

MarkUp lets you collect feedback directly on top of your websites, PDFs and images.

Proton Pass

Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.

Visual Debug

A Visual feedback tool for better client-dev communication

meet.jit.si

One-click video conversations, and screen sharing, for free

Microsoft Teams

Microsoft Teams is a chat-based digital hub that brings conversations, content, and apps together in one place all from a single experience. Free for up to 500k users.

Miro

Scalable, secure, cross-device, and enterprise-ready collaboration whiteboard for distributed teams. With a freemium plan.

nootiz

The go-to tool for gathering and managing visual feedback on any website

Notion

Notion is a note-taking and collaboration application with markdown support that integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.

Nuclino

A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, and 5GB storage.

OnlineInterview.io

Free code interview platform with embedded video chat, drawing board, and online code editor where you can compile and run your code on the browser. You can create a remote interview room with just one click.

Quidlo Timesheets

A simple timesheet and time tracking app for teams. The free plan has time tracking and generating reports features for up to 10 users.

PageShare.dev

Adds visual review capabilities into GitHub Pull Requests with no need to deploy websites. Free for up to 10 pages each month and 100MB of storage in total.

Pendulums

Pendulums is a free time tracking tool that helps you manage your time in a better manner with an easy-to-use interface and valuable statistics.

Pumble

Free team chat app. Unlimited users and message history, free forever.

Raindrop.io

Private and secure bookmarking app for macOS, Windows, Android, iOS, and Web. Free Unlimited Bookmarks and Collaboration.

element.io

A decentralized and open-source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.

Rocket.Chat

Open-source communication platform with Omnichannel features, Matrix Federation, Bridge with others apps, Unlimited messaging, and Full messaging history.

seafile.com

Private or cloud storage, file sharing, sync, discussions. The cloud version has just 1 GB

Sema

Free developer portfolio tool able to consolidate and snapshot contributions across multiple repositories into a single report.

Screen Sharing via Browser

Free screen sharing tool, share your screen with collabrators right from your browser, no download or registration needed. For free.

Slab

A modern knowledge management service for teams. Free for up to 10 users.

slack.com

Free for unlimited users with some feature limitations

Spectrum

Create public or private communities for free.

StatusPile

A status page of status pages. Could you track the status pages of your upstream providers?

Stickies

Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, and 1 GB storage.

Stacks

Content workspace with integrated notes, links, and file storage to navigate information overload. Forever free personal plan.

talky.io

Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required

Teamhood

Free Project, Task, and Issue-tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for five users and three project portfolios.

Teamplify

improve team development processes with Team Analytics and Smart Daily Standup. Includes full-featured Time Off management for remote-first teams. Free for small groups of up to 5 users.

Tefter

Bookmarking app with a powerful Slack integration. Free for open-source teams.

TeleType

share terminals, voice, code, whiteboard, and more. no sign-in is required for end-to-end encrypted collaboration for developers.

TimeCamp

Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.

Huly

All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) - unlimited users, 10GB storage per workspace, 10GB video(audio) traffic.

Teamcamp

All-in-one project management application for software development companies.

twist.com

An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans are available. Discounts are provided for eligible teams.

tldraw.com

Free open-source white-boarding and diagramming tool with intelligent arrows, snapping, sticky notes, and SVG export features. Multiplayer mode for collaborative editing. Free official VS Code extension available as well.

BookmarkOS.com

Free all-on-one bookmark manager, tab manager, and task manager in a customizable online desktop with folder collaboration.

typetalk.com

Share and discuss ideas with your team through instant messaging on the web or your mobile

Tugboat

Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.

whereby.com

One-click video conversations, for free (formerly known as appear.in)

windmill.dev

Windmill is an open-source developer platform to quickly build production-grade multi-step automation and internal apps from minimal Python and Typescript scripts. As a free user, you can create and be a member of at most three non-premium workspaces.

vadoo.tv

Video hosting and marketing made simple. Upload videos with a single click. Record, manage, share & more. The free tier provides up to 10 videos, 1 GB of storage, and 10 GB of bandwidth/per month

userforge.com

Interconnected online personas, user stories and context mapping. Helps keep design and dev in sync free for up to 3 personas and two collaborators.

wistia.com

Video hosting with viewer analytics, HD video delivery, and marketing tools to help understand your visitors, 25 videos, and Wistia branded player

wormhol.org

Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.

Wormhole

Share files up to 5GB with end-to-end encryption for up to 24hours. For files larger than 5 GB, it uses peer-to-peer transfer to send your files directly.

zoom.us

Secure Video and Web conferencing add-ons available. The free plan is limited to 40 minutes.

Zulip

Real-time chat with a unique email-like threading model. The free plan includes 10,000 messages of search history and File storage up to 5 GB. also, it provides a self-hostable open-source version.

robocorp.com

Open-source stack for powering Automation Ops. Try out Cloud features and implement simple automation for free. Robot work 240 min/month, 10 Assistant runs, Storage of 100 MB.

Fleep.io

Fleep an alternative to Slack. It has a free plan for small teams with full message history, unlimited 1:1 conversations, 1 group conversation, and 1 GB file storage.

Chanty.com

Chanty is another alternative to Slack. It has a free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, ten integrations, and 20 GB storage per team.

ruttl.com

The best all-in-one feedback tool to collect digital feedback and review websites, PDFs, and images.

Mattermost

Secure collaboration for technical teams. Free plan with unlimited channels, playbooks, boards, users, 10GB storage, and more.

Webvizio

Website feedback tool, website review software, and bug reporting tool for streamlining web development collaboration on tasks directly on live websites and web apps, images, PDFs, and design files.

Pullflow

Pullflow offers an AI-enhanced platform for code review collaboration across GitHub, Slack, and VS Code.

Webex

Video meetings with a free plan offering 40 minutes per meeting with 100 attendees.

RingCentral

Video meetings with a free plan offering 50 minutes per meeting with 100 participants.

GitBook

Platform for capturing and documenting technical knowledge — from product docs to internal knowledge bases and APIs. Free plan for individual developers.

transfernow

simplest, fastest and safest interface to transfer and share files. Send photos, videos and other large files without a manditory subscription.

paste.sh

This is a JavaScript and the Crypto based simple paste site.

Revolt.chat

An OpenSource alternative for[Discord](https://discord.com/), that respects your privacy. It also have most proprietary features from discord for free. Revolt is a all in one application that is secure and fast, while being 100% free. every features are free. They also have (official & unofficial) plugins support unlike most main-stream chatting applications.

Tencent RTC

Tencent Real-Time Communication (TRTC) offers solutions for group audio/video calls.10,000 free minutes/month for the first year.

Pastefy

Beautiful and simple Pastebin with optional Client-Encryption, Multitab-Pastes, an API, a highlighted Editor and more.

SiteDots

Share feedback for website projects directly on your website, no emulation, canvas or workarounds. Completely functional free tier.

CMS

acquia.com

Hosting for Drupal sites. Free tier for developers. Free development tools (such as Acquia Dev Desktop) are also available.

Contentful

Headless CMS. Content management and delivery APIs in the cloud. Comes with one free Community space that includes five users, 25K records, 48 Content Types, 2 locales.

Cosmic

Headless CMS and API toolkit. Free personal plans for developers.

Crystallize

Headless PIM with ecommerce support. Built-in GraphQL API. The free version includes unlimited users, 1000 catalog items, 5 GB/month bandwidth, and 25k/month API calls.

DatoCMS

Offers free tier for small projects. DatoCMS is a GraphQL-based CMS. On the lower tier, you have 100k/month calls.

Directus

Headless CMS. A completely free and open-source platform for managing assets and database content on-prem or in the Cloud. There are no limitations or paywalls.

FrontAid

Headless CMS that stores JSON content directly in your Git repository. No restrictions.

kontent.ai

A Content-as-a-Service platform that gives you all the headless CMS benefits while empowering marketers at the same time. The developer plan provides two users with unlimited projects with two environments for each, 500 content items, two languages with Delivery and Management API, and Custom elements support. You can use more detailed plans to meet your needs.

Prismic

Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides unlimited API calls, documents, custom types, assets, and locales to one user. Everything that you need for your next project. Bigger free plans are available for Open Content/Open Source projects.

Sanity.io

Platform for structured content with an open-source editing environment and a real-time hosted data store. Unlimited projects. Unlimited admin users, three non-admin users, two datasets, 500K API CDN requests, 10GB bandwidth, and 5GB assets included for free per project.

sensenet

API-first headless CMS providing enterprise-grade solutions for businesses of all sizes. The Developer plan provides three users, 500 content items, three built-in roles, 25+5 content types, fully accessible REST API, document preview generation, and Office Online editing.

TinaCMS

Replacing Forestry.io. Open source Git-backed headless CMS that supports Markdown, MDX, and JSON. The basic offer is free with two users available.

GatsbyjsCMS

Gatsby is the fast and flexible framework that makes building websites with any CMS, API, or database fun again. Build and deploy headless websites that drive more traffic, convert better, and earn more revenue!

Hygraph

Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first.

Squidex

Offers free tier for small projects. API / GraphQL first. Open source and based on event sourcing (versing every change automatically).

InstaWP

Launch a WordPress site in a few seconds. A free tier with 5 Active Sites, 500 MB Space, 48 hrs Site Expiry.

Storyblok

A Headless CMS for developers and marketers that works with all modern frameworks. The Community (free) tier offers Management API, Visual Editor, ten sources, Custom Field Types, Internationalization (unlimited languages/locales), Asset Manager (up to 2500 assets), Image Optimizing Service, Search Query, Webhook + 250GB Traffic/month included.

WPJack

Set up WordPress on any cloud in less than 5 minutes! The free tier includes 1 server, 2 sites, free SSL certificates, and unlimited cron jobs. No time limits or expirations—your website, your way.

Code Generation

Appinvento

AppInvento is a free No code app builder. In the automatically generated backend code, users have complete access to the source code and unlimited APIs and routes, allowing for extensive integration. The free plan includes three projects, five tables, and a Google add-on.

Cody AI

Cody is a coding AI assistant that uses AI and a deep understanding of your codebase to help you write and understand code faster. Cody gives developers a choice of LLMs (including local inference), has support for various IDEs, supports all popular programming languages, and has a free plan. The free plan gives developers 20 chat messages (using Claude 3 Sonnet as the LLM) and 500 autocompletions (using the Starcoder 16b) each month.

DhiWise

Seamlessly turn Figma designs into dynamic Flutter & React applications with DhiWise's innovative code generation technology, optimizing your workflow and helping you craft exceptional mobile and web experiences faster than ever before.

Codeium

Codeium is a free AI-powered code completion tool. It supports over 20+ programming languages (Python, JavaScript, Java, TypeScript, PHP, C/C++, Go, etc.) and integrates with all significant standalone and web IDEs.

Fern

Write API definitions and use them to generate SDKs/client libraries in popular languages such as TypeScript, Python, Java, Go, and more. OpenAPI fully supported. Free tier generates code for up to a max of 20 endpoints.

Metalama

Only for C#. Metalama generates the boilerplate of the code on the fly during compilation so that your source code remains clean. It is free for open-source projects, and its commercial-friendly free tier includes three aspects.

Supermaven

Supermaven is a fast AI code completion plugin for VSCode, JetBrains, and Neovim. Free tier provides unlimited inline completions.

tabnine.com

Tabnine helps developers create better software faster by providing insights learned from all the code in the world. Plugin available.

v0.dev

v0 uses AI models to generate code based on simple text prompts. It generates copy-and-paste friendly React code based on shadcn/ui and Tailwind CSS that people can use in their projects. Each generation takes at minimum 30 credits. You start up with 1200 credits, and get 200 free credits every month.

Code Quality

beanstalkapp.com

A complete workflow to write, review, and deploy code), a free account for one user, and one repository with 100 MB of storage

browserling.com

Live interactive cross-browser testing, free only 3 minutes sessions with MS IE 9 under Vista at 1024 x 768 resolution

codacy.com

Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS, and CoffeeScript, free for unlimited public and private repositories

Codeac.io

Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Bitbucket, and GitLab (even self-hosted). In addition to standard languages, it also analyzes Ansible, Terraform, CloudFormation, Kubernetes, and more. (open-source free)

CodeBeat

Automated Code Review Platform available for many languages. Free forever for public repositories with Slack and e-mail integration.

codeclimate.com

Automated code review, free for Open Source and unlimited organisation-owned private repos (up to 4 collaborators). Also free for students and institutions.

codecov.io

Code coverage tool (SaaS), free for Open Source and one free private repo

CodeFactor

Automated Code Review for Git. The free version includes unlimited users, public repositories, and one private repo.

coderabbit.ai

AI-powered code review tool that integrates with GitHub/GitLab. Free tier includes 200 files/hour, 3 reviews per hour, and 50 conversations/hour. Free forever for open source projects.

codescene.io

CodeScene prioritizes technical debt based on how the developers work with the code and visualizes organizational factors like team coupling and system mastery. Free for Open Source.

CodSpeed

Automate performance tracking in your CI pipelines. Catch performance regressions before deployment, thanks to precise and consistent metrics. Free forever for Open Source projects.

coveralls.io

Display test coverage reports, free for Open Source

dareboost

5 free analysis reports for web performance, accessibility, and security each month

deepcode.ai

DeepCode finds bugs, security vulnerabilities, performance and API issues based on AI. DeepCode's speed of analysis allows us to analyze your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket, and GitLab. Free for open source and private repos and up to 30 developers.

deepscan.io

Advanced static analysis for automatically finding runtime errors in JavaScript code, free for Open Source

DeepSource

DeepSource continuously analyzes source code changes, finding and fixing issues categorized under security, performance, anti-patterns, bug-risks, documentation, and style. Native integration with GitHub, GitLab, and Bitbucket.

DiffText

Instantly find the differences between two blocks of code. Completely free to use.

eversql.com

EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries automatically.

gerrithub.io

Gerrit code review for GitHub repositories for free

gocover.io

Code coverage for any [Go](https://golang.org/) package

goreportcard.com

Code Quality for Go projects, free for Open Source

gtmetrix.com

Reports and thorough recommendations to optimize websites

holistic.dev

The #1 static code analyzer for Postgresql optimization. Performance, security, and architect database issues automatic detection service

houndci.com

Comments on GitHub commits about code quality, free for Open Source

Moderne.io

Automatic source code refactoring. Moderne offers framework migrations, code analysis with remediation, and unrivaled code transformation at scale, so developers can spend their time building new things instead of maintaining the old. Free for Open Source.

reviewable.io

Code review for GitHub repositories, free for public or personal repos.

parsers.dev

Abstract syntax tree parsers and intermediate representation compilers as a service

scan.coverity.com

Static code analysis for Java, C/C++, C# and JavaScript, free for Open Source

scrutinizer-ci.com

Continuous inspection platform, free for Open Source

semanticdiff.com

Programming language aware diff for GitHub pull requests and commits, free for public repositories

shields.io

Quality metadata badges for open source projects

sonarcloud.io

Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source

SourceLevel

Automated Code Review and Team Analytics. Free for Open Source and organizations up to 5 collaborators.

webceo.com

SEO tools but with also code verifications and different types of devices

zoompf.com

Fix the performance of your web sites, detailed analysis

CI and CD

AccessLint

AccessLint brings automated web accessibility testing into your development workflow. It's free for open source and education purposes.

appcircle.io

An enterprise-grade mobile DevOps platform that automates the build, test, and publish store of mobile apps for faster, efficient release cycle. Free for 30 minutes max build time per build, 20 monthly builds and 1 concurrent build.

appveyor.com

CD service for Windows, free for Open Source

LocalOps

Deploy your app on AWS/GCP/Azure in under 30 minutes. Setup standardised app environments on any cloud, which come with in-built continuous deployment automation and advanced observability. The free plan allows 1 user and 1 app environment.

Argonaut

Deploy apps and infrastructure on your cloud in minutes. Support for custom and third-party app deployments on Kubernetes and Lambda environments. The free tier allows unlimited apps and deployments for 5 domains and 2 users.

bitrise.io

A CI/CD for mobile apps, native or hybrid. With 200 free builds/month 10 min build time and two team members. OSS projects get 45 min build time, +1 concurrency and unlimited team size.

buddy.works

A CI/CD with five free projects and one concurrent run (120 executions/month)

Buildkite

bytebase.com

Database CI/CD and DevOps. Free under 20 users and ten database instances

CircleCI

Comprehensive free plan with all features included in a hosted CI/CD service for GitHub, GitLab, and BitBucket repositories. Multiple resource classes, Docker, Windows, Mac OS, ARM executors, local runners, test splitting, Docker Layer Caching, and other advanced CI/CD features. Free for up to 6000 minutes/month execution time, unlimited collaborators, 30 parallel jobs in private projects, and up to 80,000 free build minutes for Open Source projects.

cirrus-ci.org

Free for public GitHub repositories

cirun.io

Free for public GitHub repositories

codefresh.io

Free-for-Life plan: 1 build, one environment, shared servers, unlimited public repos

codemagic.io

Free 500 build minutes/month

codeship.com

100 private builds/month, five private projects, unlimited for Open Source

deploybot.com

1 repository with ten deployments, free for Open Source

deployhq.com

1 project with ten daily deployments (30 build minutes/month)

drone

Drone Cloud enables developers to run Continuous Delivery pipelines across multiple architectures - including x86 and Arm (both 32-bit and 64-bit) - all in one place

LayerCI

CI for full stack projects. One full stack preview environment with 5GB memory & 3 CPUs.

semaphoreci.com

Free for Open Source, 100 private builds per month

Squash Labs

creates a VM for each branch and makes your app available from a unique URL, Unlimited public & private repos, Up to 2 GB VM Sizes.

styleci.io

Public GitHub repositories only

Mergify

workflow automation and merge queue for GitHub — Free for public GitHub repositories

Make

The workflow automation tool lets you connect apps and automate workflows using UI. It supports many apps and the most popular APIs. Free for public GitHub repositories, and free tier with 100 Mb, 1000 Operations, and 15 minutes of minimum interval.

Spacelift

Management platform for Infrastructure as Code. Free plan features: IaC collaboration, Terraform module registry, ChatOps integration, Continuous resource compliance with Open Policy Agent, SSO with SAML 2.0, and access to public worker pools: up to 200 minutes/month

microtica.com

Startup environments with ready-made infrastructure components, deploy apps on AWS for free, and support your production workloads. The free tier includes 1 Environment (on your AWS account), 2 Kubernetes Services, 100 build minutes per month, and 20 monthly deployments.

Nx Cloud

Nx Cloud speeds up your monorepos on CI with features such as remote caching, distribution of tasks across machines and even automated splitting of your e2e test runs. It comes with a free plan for up to 30 contributors with generous 150k credits included.

blacksmith

Managed performance runners for GitHub Actions that provides 3,000 free minutes per month, with no credit card needed.

Terramate

Terramate is an orchestration and management platform for Infrastructure as Code (IaC) tools such as Terraform, OpenTofu, and Terragrunt. Free up to 2 users including all features.

Terrateam

GitOps-first Terraform automation with pull request-driven workflows, project isolation via self-hosted runners, and layered runs for ordered operations. Free for up to 3 users.

Testing

Applitools.com

Smart visual validation for web, native mobile and desktop apps. Integrates with almost all automation solutions (like Selenium and Karma) and remote runners (Sauce Labs, Browser Stack). free for open source. A free tier for a single user with limited checkpoints per week.

Appetize

Test your Android & iOS apps on this Cloud Based Android Phone / Tablets emulator and iPhone/iPad simulators directly in your browser. The free tier includes two concurrent session with 30 minutes of usage per month. No limit on app size.

Apptim

A mobile testing tool that enables people without performance engineering skills to evaluate an app's performance and user experience (UX). A desktop version using your own device is 100% FREE, with unlimited tests on both iOS and Android.

Argos

Open Source visual testing for developers. Unlimitedprojects, with 5,000 screenshots per month. Free for open-source projects.

Bencher

A continuous benchmarking tool suite to catch CI performance regressions. Free for all public projects.

browserstack.com

Manual and automated browser testing, [free for Open Source](https://www.browserstack.com/open-source?ref=pricing)

BugBug

Lightweight test automation tool for web applications. It is easy to learn and doesn't require coding. You can run unlimited tests on your own computer for free. You also get cloud monitoring and CI/CD integration for an additional monthly fee.

Checkly

Code-first synthetic monitoring for modern DevOps. Monitor your APIs and apps at a fraction of the price of legacy providers. Powered by a Monitoring as Code workflow and Playwright. Generous free tier for devs.

checkbot.io

Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites.

CORS-Tester

A free tool for developers and API testers to check if an API is CORS-enabled for a given domain and identify gaps. Get actionable insights.

cypress.io

Fast, easy and reliable testing for anything that runs in a browser. Cypress Test Runner is always free and open-source with no restrictions and limitations. Cypress Dashboard is free for open-source projects for up to 5 users.

Cypress Recorder by Preflight

Create AI-powered Cypress Tests/POM models on your browser. It's open-source, except for the AI part. It's free for five monthly test creations with Self-healing scripts, Email, and Visual testing.

everystep-automation.com

Records and replays all steps made in a web browser and creates scripts, free with fewer options

Gremlin

Gremlin's Chaos Engineering tools allow you to safely and securely inject failure into your systems to find weaknesses before they cause customer-facing issues. Gremlin Free provides access to Shutdown and CPU attacks on up to 5 hosts or containers.

gridlastic.com

Selenium Grid testing with a free plan of up to 4 simultaneous selenium nodes/10 grid starts/4,000 test minutes/month

katalon.com

Provides a testing platform that can help teams of all sizes at different levels of testing maturity, including Katalon Studio, TestOps (+ Visual Testing free), TestCloud, and Katalon Recorder.

Keploy

Keploy is a functional testing toolkit for developers. Recording API calls generates E2E tests for APIs (KTests) and mocks or stubs(KMocks). It is free for Open Source projects.

knapsackpro.com

Speed up your tests with optimal test suite parallelization on any CI provider. Split Ruby, JavaScript tests on parallel CI nodes to save time. Free plan for up to 10 minutes of test files and free unlimited plan for Open Source projects.

lambdatest.com

Manual, visual, screenshot, and automated browser testing on selenium and cypress, [free for Open Source](https://www.lambdatest.com/open-source-cross-browser-testing-tool)

loadmill.com

Automatically create API and load tests by analyzing network traffic. Simulate up to 50 concurrent users for up to 60 minutes for free monthly.

lost-pixel.com

holistic visual regression testing for your Storybook, Ladle, Histoire stories and Web Apps. Unlimited team members, totally free for open-source, 7,000 snapshots/month.

octomind.dev

Auto-generated, run and maintained Playwright UI tests with AI-assisted test case generation

percy.io

Add visual testing to any web app, static site, style guide, or component library. Unlimited team members, Demo app, and unlimited projects, 5,000 snapshots/month.

preflight.com

No-code automated web testing. Record tests on your browser that are resilient to UI changes and run them on Windows machines. Could you integrate with your CI/CD? The free plan includes 50 monthly test runs with video, HTML sessions, and more.

qase.io

Test management system for Dev and QA teams. Manage test cases, compose test runs, perform tests, track defects, and measure impact. The free tier includes all core features, with 500MB available for attachments and up to 3 users.

Repeato

Requestly

seotest.me

Free on-page SEO website tester. 10 free website crawls per day. Useful SEO learning resources and recommendations on how to improve the on-page SEO results for any website regardless of technology.

snippets.uilicious.com

It's like CodePen but for cross-browser testing. UI-licious lets you write tests like user stories and offers a free platform - UI-licious Snippets - that allows you to run unlimited tests on Chrome with no sign-up required for up to 3 minutes per test run. Found a bug? You can copy the unique URL to your test to show your devs exactly how to reproduce the bug.

TestCollab

A user-friendly test management software, its free plan includes Jira integration, unlimited projects, test case import using CSV/XLSx, time tracking, and 1 GB file storage.

testingbot.com

Selenium Browser and Device Testing, [free for Open Source](https://testingbot.com/open-source)

Testspace.com

A Dashboard for publishing automated test results and a Framework for implementing manual tests as code using GitHub. The service is [free for Open Source](https://github.com/marketplace/testspace-com) and accounts for 450 monthly results.

tesults.com

Test results reporting and test case management. Integrates with popular test frameworks. Open Source software developers, individuals, educators, and small teams getting started can request discounted and free offerings beyond basic free projects.

UseWebhook.com

Capture and inspect webhooks from your browser. Forward to localhost, or replay from history. Free to use.

Vaadin

Build scalable UIs in Java or TypeScript, and use the integrated tooling, components, and design system to iterate faster, design better, and simplify the development process. Unlimited Projects with five years of free maintenance.

websitepulse.com

Various free network and server tools.

webhook-test.com

Debug and inspect webhooks and HTTP requests with a unique URL during integration. Completely free, you can create unlimited URLs and receive recommendations.

webhook.site

Verify webhooks, outbound HTTP requests, or emails with a custom URL. A temporary URL and email address are always free.

webhookbeam.com

Set up webhooks and monitor them via push notifications and emails.

Security and PKI

aikido.dev

All-in-one appsec platform covering SCA, SAST, CSPM, DAST, Secrets, IaC, Malware, Container scanning, EOL,... Free plan includes two users, scanning of 10 repos, 1 cloud, 2 containers & 1 domain.

alienvault.com

Uncovers compromised systems in your network

Altcha.org

A Spam Filter for websites and APIs powered by natural language processing and machine learning. Free plan includes 200 requests a day per domain.

atomist.com

A quicker and more convenient way to automate various development tasks. Now in beta.

cloudsploit.com

Amazon Web Services (AWS) security and compliance auditing and monitoring

Public Cloud Threat Intelligence

High confidence Indicator of Compromise(IOC) targeting public cloud infrastructure, A portion is available on github (https://github.com/unknownhad/AWSAttacks). Full list is available via API

CodeNotary.io

Open Source platform with indelible proof to notarize code, files, directories, or container

crypteron.com

Cloud-first, developer-friendly security platform prevents data breaches in .NET and Java applications

CyberChef

A simple, intuitive web app for analyzing and decoding/encoding data without dealing with complex tools or programming languages. Like a Swiss army knife of cryptography & encryption. All features are free to use, with no limit. Open source if you wish to self-host.

DAS

Styra DAS Free, Full lifecycle policy management to create, deploy and manage Open Policy Agent(OPA) authorization

Datree

Open Source CLI tool to prevent Kubernetes misconfigurations by ensuring that manifests and Helm charts follow best practices as well as your organization's policies

Dependabot

DJ Checkup

Scan your Django site for security flaws with this free, automated checkup tool. Forked from the Pony Checkup site.

Doppler

Universal Secrets Manager for application secrets and config, with support for syncing to various cloud providers. Free for five users with basic access controls.

Dotenv

Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates.

GitGuardian

Keep secrets out of your source code with automated secrets detection and remediation. Scan your git repos for 350+ types of secrets and sensitive files – Free for individuals and teams of 25 developers or less.

Have I been pwned?

REST API for fetching the information on the breaches.

hostedscan.com

Online vulnerability scanner for web applications, servers, and networks. Ten free scans per month.

Infisical

Open source platform that lets you manage developer secrets across your team and infrastructure: everywhere from local development to staging/production 3rd-party services. Free for up to 5 developers.

Internet.nl

Test for modern Internet Standards like IPv6, DNSSEC, HTTPS, DMARC, STARTTLS and DANE

keychest.net

SSL expiry management and cert purchase with an integrated CT database

letsencrypt.org

Free SSL Certificate Authority with certs trusted by all major browsers

meterian.io

Monitor Java, Javascript, .NET, Scala, Ruby, and NodeJS projects for security vulnerabilities in dependencies. Free for one private project, unlimited projects for open source.

Mozilla Observatory

Find and fix security vulnerabilities in your site.

opswat.com

Security Monitoring of computers, devices, applications, configurations, Free 25 users and 30 days history users.

openapi.security

Free tool to quickly check the security of any OpenAPI / Swagger-based API. You don't need to sign up.

pixee.ai

Automated Product Security Engineer as a free GitHub bot that submits PRs to your Java code base to automatically resolve vulnerabilities. Other languages coming soon!

pyup.io

Monitor Python dependencies for security vulnerabilities and update them automatically. Free for one private project, unlimited projects for open source.

qualys.com

Find web app vulnerabilities, audit for OWASP Risks

report-uri.io

CSP and HPKP violation reporting

ringcaptcha.com

Tools to use the phone number as id, available for free

seclookup.com

Seclookup APIs can enrich domain threat indicators in SIEM, provide comprehensive information on domain names, and improve threat detection & response. Get 50K lookups free [here](https://account.seclookup.com/).

snyk.io

Can find and fix known security vulnerabilities in your open-source dependencies. Unlimited tests and remediation for open-source projects. Limited to 200 tests/month for your private projects.

ssllabs.com

Intense analysis of the configuration of any SSL web server

SOOS

Free, unlimited SCA scans for open-source projects. Detect and fix security threats before release. Protect your projects with a simple and effective solution.

StackHawk

Sucuri SiteCheck

Free website security check and malware scanner

Protectumus

Free website security check, site antivirus, and server firewall (WAF) for PHP. Email notifications for registered users in the free tier.

TestTLS.com

Test an SSL/TLS service for secure server configuration, certificates, chains, etc. Not limited to HTTPS.

threatconnect.com

Threat intelligence: It is designed for individual researchers, analysts, and organizations starting to learn about cyber threat intelligence. Free up to 3 Users

tinfoilsecurity.com

Automated vulnerability scanning. The free plan allows weekly XSS scans

Ubiq Security

Encrypt and decrypt data with three lines of code and automatic key management. Free for one application and up to 1,000,000 encryptions per month.

Virgil Security

Tools and services for implementing end-to-end encryption, database protection, IoT security, and more in your digital solution. Free for applications with up to 250 users.

Vulert

Vulert continuously monitors your open-source dependencies for new vulnerabilities, recommends fixes, without requiring installation or access to your codebase. Free for open-source projects.

Escape GraphQL Quickscan

One-click security scan of your GraphQL endpoints. Free, no login required.

HasMySecretLeaked

Search across 20 million exposed secrets in public GitHub repositories, gists, issues,and comments for Free

Project Gatekeeper

An All-in-One SSL Toolkit Offering various features like Private Key & CSR Generator, SSL Certificate Decoder, Certificate Matcher and Order SSL Certificate. We offer the users to generate Free SSL Certificates from Let's Encrypt, Google Trust and BuyPass using CNAME Records rather than TXT Records.

Authentication, Authorization, and User Management

Aserto

Fine-grained authorization as a service for applications and APIs. Free up to 1000 MAUs and 100 authorizer instances.

asgardeo.io

Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and five identity providers.

Auth0

Hosted SSO. The free plan includes 25,000 MAUs, unlimited Social Connections, a custom domain, and more.

Authgear

Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.

Authress

Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter and more. The first 1000 API calls are free.

Authy

Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications.

Cerbos Hub

A complete authorization management system for authoring, testing, and deploying access policies. Fine-grained authorization and access control, free up to 100 monthly active principals.

Clerk

User management, authentication, 2FA/MFA, prebuilt UI components for sign-in, sign-up, user profiles, and more. Free up to 10,000 monthly active users.

Cloud-IAM

Keycloak Identity and Access Management as a Service. Free up to 100 users and one realm.

Corbado

Add passkey-first authentication to new or existing apps. Free for unlimited MAUs.

Descope

Highly customizable AuthN flows, has both a no-code and API/SDK approach, Free 7,500 active users/month, 50 tenants (up to 5 SAML/SSO tenants).

duo.com

Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens.

Kinde

Simple, robust authentication you can integrate with your product in minutes. Everything you need to get started with 7,500 free MAU.

logintc.com

Two-factor authentication (2FA) by push notifications, free for ten users, VPN, Websites, and SSH

MojoAuth

MojoAuth makes it easy to implement Passwordless authentication on your web, mobile, or any application in minutes.

Okta

User management, authentication and authorization. Free for up to 100 monthly active users.

onelogin.com

Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, three company apps, and five personal apps, unlimited users

Ory

AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.

Permit.io

Auhtorization-as-a-service provider platform enabling RBAC, ABAC, and ReBAC for scalable microservices with real-time updates and a no-code policy UI. A 1000 Monthly Active User free tier.

Phase Two

Keycloak Open Source Identity and Access Management. Free realm up to 1000 users, up to 10 SSO connections, leveraging Phase Two's Keycloak enhanced container which includes the [Organization](https://phasetwo.io/product/organizations/) extension.

SSOJet

Add Enterprise SSO Without Rebuilding Your Auth. The free plan includes unlimited monthly active users, unlimited organizations, 2 SSO & 2 SCIM connections.

Stytch

An all-in-one platform that provides APIs and SDKs for authentication and fraud prevention. The free plan includes 10,000 monthly active users, unlimited organizations, 5 SSO or SCIM connections, and 1,000 M2M tokens.

Stack Auth

Open-source authentication that doesn't suck. The most developer-friendly solution, getting you started in just five minutes. Self-hostable for free, or offers a managed SaaS version with 10k free Monthly Active Users.

SuperTokens

Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.

Warrant

Hosted enterprise-grade authorization and access control service for your apps. The free tier includes 1 million monthly API requests and 1,000 authz rules.

ZITADEL Cloud

A turnkey user and access management that works for you and supports multi-tenant (B2B) use cases. Free for up to 25,000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies, and so on).

PropelAuth

A Sell to companies of any size immediately with a few lines of code, free up to 200 users and 10k Transactional Emails (with a watermark branding: "Powered by PropelAuth").

Logto

Develop, secure, and manage user identities of your product - for both authentication and authorization. Free for up to 5,000 MAUs with open-source self-hosted option available.

WorkOS

Free user management and authentication for up to 1 Million MAUs. Support email + password, social auth, Magic Auth, MFA, and more.

Messaging and Streaming

Ably

Realtime messaging service with presence, persistence and guaranteed delivery. The free plan includes 3m messages per month, 100 peak connections, and 100 peak channels.

cloudamqp.com

RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's

courier.com

Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. The free plan includes 10,000 messages/mo.

engagespot.co

Multi-channel notification infrastructure for developers with a prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.

HiveMQ

Connect your MQTT devices to the Cloud Native IoT Messaging Broker. Free to connect up to 100 devices (no credit card required) forever.

knock.app

NotificationAPI.com

Add user notifications to any software in 5 minutes. The free plan includes 10,000 notifications/month + 100 SMS and Automated Calls.

Novu.co

The open-source notification infrastructure for developers. Simple components and APIs for managing all communication channels in one place: Email, SMS, Direct, In-App and Push. The free plan includes 30,000 notifications/month with 90 days of retention.

pusher.com

Realtime messaging service. Free for up to 100 simultaneous connections and 200,000 messages/day

scaledrone.com

Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day

synadia.com

[NATS.io](https://nats.io) as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections, and 5GB of data per month.

cloudkarafka.com

Free Shared Kafka cluster, up to 5 topics, 10MB data per topic and 28 days of data retention.

pubnub.com

Swift, Kotlin, and React messaging at 1 million transactions each month. Transactions may contain multiple messages.

eyeson API

A video communication API service based on WebRTC (SFU, MCU) to build video platforms. Allows real-time data Injection, Video Layouts, Recordings, a fully featured hosted web UI (quickstart) or packages for custom UIs. Has a [free tier for developers](https://apiservice.eyeson.com/api-pricing) with 1000 meeting minutes a month.

webpushr

Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging

httpSMS

Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.

EMQX Serverless

Scalable and secure serverless MQTT broker you can get in seconds. 1M session minutes/month free forever (no credit card required).

Pocket Alert

Send push notifications to your iOS and Android devices. Effortlessly integrate via API or Webhooks and maintain full control over your alerts. Free plan: 50 messages per day to 1 device and 1 application.

Translation Management

crowdin.com

Unlimited projects, unlimited strings, and collaborators for Open Source

gitlocalize.com

Free and unlimited for both private and public repositories

Lecto

Machine Translation API with Free tier (30 free requests, 1000 translated characters per request). Integrated with the Loco Translate Wordpress plugin.

lingohub.com

Free up to 3 users, always free for Open Source

localazy.com

Free for 1000 source language strings, unlimited languages, unlimited contributors, startup and open source deals

Localeum

Free up to 1000 strings, one user, unlimited languages, unlimited projects

localizely.com

Free for Open Source

Loco

Free up to 2000 translations, Unlimited translators, ten languages/project, 1000 translatable assets/project

oneskyapp.com

Limited free edition for up to 5 users, free for Open Source

POEditor

Free up to 1000 strings

SimpleLocalize

Free up to 100 translation keys, unlimited strings, unlimited languages, startup deals

Texterify

Free for a single user

Tolgee

Free SaaS offering with limited translations, forever-free self-hosted version

transifex.com

Free for Open Source

Translation.io

Free for Open Source

Translized

Free up to 1000 strings, one user, unlimited languages, unlimited projects

webtranslateit.com

Free up to 500 strings

weblate.org

It's free for libre projects with up to 10,000 string sources for the free tier and Unlimited Self-hosted on-premises.

Free PO editor

Free for everybody

Zoho

Started as an e-mail provider but now provides a suite of services, some of which have free plans. List of services having free plans :

Maileroo

SMTP relay and email API for developers. 5,000 emails per month, unlimited domains, free email verification, blacklist monitoring, mail tester and more.

Forms

Feathery

Powerful, developer-friendly form builder. Build signup & login, user onboarding, payment flows, complex financial applications, and more. The free plan allows up to 250 submissions/month and five active forms.

Form-Data

No-code forms backend. Spam filter, email notification and auto-respond, webhooks, zapier, redirects, AJAX or POST, and more. The free plan offers unlimited forms, 20 submissions/month, and an additional 2000 submissions with Form-Data badge.

FabForm

Form backend platform for intelligent developers. The free plan allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email, and others.

Form.taxi

Endpoint for HTML forms submissions. With notifications, spam blockers, and GDPR-compliant data processing. Free plan for basic usage.

Formcarry.com

HTTP POST Form endpoint, Free plan allows 100 monthly submissions.

formingo.co

FormKeep.com

Unlimited forms with 50 monthly submissions, spam protection, email notification, and a drag-and-drop designer that can export HTML. Additional features include custom field rules, teams, and integrations to Google Sheets, Slack, ActiveCampaign, and Zapier.

formlets.com

Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.

formspark.io

Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.

Formspree.io

Send email using an HTTP POST request. The free tier limits to 50 submissions per form per month.

Formsubmit.co

Easy form endpoints for your HTML forms. Free Forever. No registration is required.

Formlick.com

Typeform alternative with lifetime deal. Users can create 1 free form and receive unlimited submissions. In premium, users can create unlimited forms and unlimited submissions.

getform.io

Form backend platform for designers and developers, 1 form, 50 submissions, Single file upload, 100MB file storage.

HeroTofu.com

Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code is required. The free plan gives unlimited forms and 100 submissions per month.

HeyForm.net

Drag and drop online form builder. The free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.

Tally.so

99% of all the features are free. The free tier lets you have: unlimited forms, unlimited submissions, email notifications, form logic, collect payments, file upload, custom thank you page, and many more.

Hyperforms.app

Create a form to email and more in seconds and without backend code. The Personal account gives you up to 50 monthly form submissions for free.

Kwes.io

Feature rich form endpoint. Works great with static sites. The free plan includes up to 1 website with up to 50 monthly submissions.

Pageclip

The free plan allows one site, one form, and 1,000 monthly submissions.

Qualtrics Survey

Create professional forms & survey using this first class tool. 50+ expert-designed survey templates. Free Account has a limit of 1 active survey, 100 responses/survey & 8 response types.

Screeb

In-app surveys and product analytics for decoding user behavior. Forever free plan allows 500 monthly active users, unlimited responses and events, many integrations, export, and periodic reports.

smartforms.dev

Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export, custom redirect, custom response page, Telegram & Slack bot, single email notifications.

Survicate

Pull feedback from all sources and send follow-up surveys with one tool. Automatically analyze feedback and extract insights with AI. Free email, website, in-product or mobile surveys, AI survey creator, and 25 monthly responses.

staticforms.xyz

Integrate HTML forms easily without any server-side code for free. After the user submits the form, an email with the form content will be sent to your registered address.

stepFORM.io

Quiz and Form Builder. The free plan has five forms, up to 3 steps per form, and 50 monthly responses.

Typeform.com

Include beautifully designed forms on websites. The free plan allows only ten fields per form and 100 monthly responses.

WaiverStevie.com

Electronic Signature platform with a REST API. You can receive notifications with webhooks. Free plan watermarks signed documents but allow unlimited envelopes + signatures.

Web3Forms

Contact forms for Static & JAMStack Websites without writing backend code. The free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.

WebAsk

Survey and Form Builder. The free plan has three surveys per account, 100 monthly responses, and ten elements per survey.

Wufoo

Quick forms to use on websites. The free plan has a limit of 100 submissions each month.

formpost.app

Free, unlimited Form to Email service. Set up custom redirects, auto-response, webhooks, etc. for free.

Formester.com

Share and embed unique-looking forms on your website—no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.

SimplePDF.eu

Embed a PDF editor on your website and turn any PDF into a fillable form. The free plan allows unlimited PDFs with three submissions per PDF.

forms.app

Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with a free plan, embed your forms on a website, or use them with a link.

Qualli

In App Surveys, designed for mobile. Use Qualli AI to craft the perfect questions. You can try it out on our free plan, up to 500 MAU, create unlimited forms and triggers.

Sprig

1 In-Product Survey or Survey with Replay per month, with GPT-powered AI Analysis.

feedback.fish

Free plan allows collecting 25 total feedback submissions. Easy to integrate with React and Vue components provided.

Vidhook

Collect feedback using delightful surveys with high response rates. Free plan includes 1 active survey, 25 responses per survey and customizable templates.

Generative AI

Keywords AI

The best LLM monitoring platform. One format to call 200+ LLMs with 2 lines of code. 10,000 free requests every month and $0 for platform features!

Portkey

Control panel for Gen AI apps featuring an observability suite & an AI gateway. Send & log up to 10,000 requests for free every month.

Braintrust

Evals, prompt playground, and data management for Gen AI. Free plan gives upto 1,000 private eval rows/week.

Findr

Universal search that lets you search all your apps, at once. Search assistant that lets you answer questions using your information. Free plan offers unlimited unified search and 5 co daily co pilot queries.

ReportGPT

AI Powered Writing Assistant. The entire platform is free as long as you bring your own API key.

Clair

Clinical AI Reference. Students have free access to the professional tool suite, which includes Open Search, Clinical Summary, Med Review, Drug Interactions, ICD-10 Codes, and Stewardship. Additionally, a free trial for the professional suite is available.

Langtrace

enables developers to trace, evaluate, manage prompts and datasets, and debug issues related to an LLM application's performance. It creates open telemetry standard traces for any LLM which helps with observability and works with any observability client. Free plan offers 50K traces/month.

LangWatch

A LLMOps platform helping AI teams measure, monitor, and optimize LLM applications for reliability, cost-efficiency, and performance. With a powerful DSPy component, we enable seamless collaboration between engineers and non-technical teams to fine-tune and productionize GenAI products. Free plan includes all platform features, 1k traces/month and 1 workflow DSPy optimizers. [#opensource](https://github.com/langwatch/langwatch)

Ultra AI

AI command center for your product. Features include multi-provider AI gateway, prompts manager, caching, logs, analytics, model fallbacks and user rate limiting. Free forever plan offers 10k+ requests per month and all the features except caching.

Comet Opik

Evaluate, test, and ship LLM applications across your dev and production lifecycles. [#opensource](https://github.com/comet-ml/opik/)

Langfuse

Open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications. Free forever plan includes 50k observations per month and all platform features. [#opensource](https://github.com/langfuse/langfuse)

Pollinations.AI

easy-to-use, free image generation AI with free API available. No signups or API keys required, and several option for integrating into a website or workflow. [#opensource](https://github.com/pollinations/pollinations)

Othor AI

An AI-native fast, simple, and secure alternative to popular business intelligence solutions like Tableau, Power BI, and Looker. Othor utilizes large language models (LLMs) to deliver custom business intelligence solutions in minutes. The Free Forever plan provides one workspace with five datasource connections for one user, with no limits on analytics. [#opensource](https://github.com/othorai/othor.ai)

OpenRouter

Provides various free AI models including DeepSeek R1, V3, Llama, and Moonshot AI. These models excel in natural language processing and are suitable for diverse development needs. Note that while these models are free to use, they are subject to rate limits. Additionally, OpenRouter offers paid models for more advanced requirements, for instance Claude, OpenAI, Grok, Gemini, and Nova.

CDN and Protection

bootstrapcdn.com

CDN for bootstrap, bootswatch and fontawesome.io

cdnjs.com

Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 11% of all websites, powered by Cloudflare.

developers.google.com

The Google Hosted Libraries is a content distribution network for the most popular Open Source JavaScript libraries

Stellate

Stellate is a blazing-fast, reliable CDN for your GraphQL API and free for two services.

jsdelivr.com

A free, fast, and reliable open-source CDN. Supports npm, GitHub, WordPress, Deno, and more.

Microsoft Ajax

The Microsoft Ajax CDN hosts popular third-party JavaScript libraries such as jQuery and enables you to easily add them to your Web application

ovh.ie

Free DDoS protection and SSL certificate

Skypack

The 100% Native ES Module JavaScript CDN. Free for 1 million requests per domain per month.

raw.githack.com

A modern replacement of **rawgit.com** which simply hosts file using Cloudflare

section.io

A simple way to spin up and manage a complete Varnish Cache solution. Supposedly free forever for one site

statically.io

CDN for Git repos (GitHub, GitLab, Bitbucket), WordPress-related assets, and images

toranproxy.com

Proxy for Packagist and GitHub. Never fail CD. Free for personal use, one developer, no support

UNPKG

CDN for everything on npm

weserv

An image cache & resize service. Manipulate images on the fly with a worldwide cache.

Namecheap Supersonic

Free DDoS protection

Gcore

CacheFly

Up to 5 TB per month of Free CDN traffic, 19 Core PoPs , 1 Domain and Universal SSL.

PaaS

anvil.works

Web app development with nothing but Python. Free tier with unlimited apps and 30-second timeouts.

appwrite

Unlimited projects with no project pausing (supports websockets) and authentication service. 1 Database, 3 Buckets, 5 Functions per project in free tier.

configure.it

Mobile app development platform, free for two projects, limited features but no resource limits

codenameone.com

Open source, cross-platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with an unlimited number of projects

deco.cx

Edge-native frontend platform with a visual CMS auto-generated from TypeScript code. Built-in A/B testing, content segmentation, and real-time analytics. Perfect for content-heavy and Enterprise e-commerce websites. Free up to 5k pageviews/month or open-source/personal projects.

Deno Deploy

Distributed system that runs JavaScript, TypeScript, and WebAssembly at the edge worldwide. The free tier includes 100,000 requests per day and 100 GiB data transfers per month.

domcloud.co

encore.dev

Backend framework using static analysis to provide automatic infrastructure, boilerplate-free code, and more. Includes free cloud hosting for hobby projects.

flightcontrol.dev

Deploy web services, databases, and more on your own AWS account with a Git push style workflow. Free tier for users with 1 developer on personal GitHub repos. AWS costs are billed through AWS, but you can use credits and the AWS free tier.

gigalixir.com

Gigalixir provides one free instance that never sleeps and a free-tier PostgreSQL database limited to 2 connections, 10, 000 rows and no backups for Elixir/Phoenix apps.

Glitch

Free public hosting with code sharing and real-time collaboration features. The free plan has a 1000-hours/month limit.

Lade

Lade is a cloud platform built for developers. The free tier includes three services, which can be either apps or databases. Each service includes 128 MB RAM and 1 GB storage.

pipedream.com

An integration platform built for developers. Develop any workflow based on any trigger. Workflows are code you can run [for free](https://docs.pipedream.com/pricing/). No server or cloud resources to manage.

pythonanywhere.com

Cloud Python app hosting. Beginner account is free, 1 Python web application at your-username.pythonanywhere.com domain, 512 MB private file storage, one MySQL database

ampt.dev

Ampt lets teams build, deploy, and scale JavaScript apps on AWS without complicated configs or managing infrastructure. Free Preview plan includes 500 invocations hourly, 2,500 invocations daily and 50,000 invocations monthly. Custom domains are allowed only in the paid plans.

Koyeb

Koyeb is a developer-friendly serverless platform to deploy apps globally. Seamlessly run Docker containers, web apps, and APIs with git-based deployment, native autoscaling, a global edge network, and built-in service mesh and discovery. Free Instance lets you deploy a web service in Frankfurt, Germany or Washington, D.C., US. Free Managed Postgres database available in Frankfurt (Germany), Washington, D.C. (US), and Singapore. 512MB memory, 2GB storage, and 0.1 CPU. No credit card is required to get started.

Napkin

FaaS with 500Mb of memory, a default timeout of 15 seconds, and 5,000 free API calls/month rate-limited to 5 calls/second.

Meteor Cloud

Galaxy hosting. Meteor's platform-as-a-service for Meteor apps includes free MongoDB Shared Hosting and automatic SSL.

Northflank

Build and deploy microservices, jobs, and managed databases with a powerful UI, API & CLI. Seamlessly scale containers from version control and external Docker registries. The free tier includes two services, two cron jobs and 1 database.

YepCode

All-in-one platform to connect APIs and services in a serverless environment. It brings all the agility and benefits of NoCode tools but with all the power of using programming languages. The free tier includes [1.000 yeps](https://yepcode.io/pricing/).

WunderGraph

An open-source platform that allows you to quickly build, ship and manage modern APIs. Built-in CI/CD, GitHub integration, and automatic HTTPS. Up to 3 projects, 1GB egress, 300 minutes of build time per month on the [free plan](https://wundergraph.com/pricing)

Zeabur

Deploy your services with one click. Free for three services, with US$ 5 free credits per month.

mogenius

Easily build, deploy, and run services on Kubernetes. The free tier supports connecting a local Kubernetes with mogenius, enabling individual developers to create a production-like test environment on their machine.

genezio

A serverless function provider offers 1 million function calls, 100GB of bandwidth, and 10 cron jobs per month for free, exclusively for non-commercial or academic use.

BaaS

Activepieces

Build automation flows to connect several apps together in your app's backend. For example, send a Slack message or add a Google Sheet row when an event fires in your app. Free up to 5,000 tasks per month.

back4app.com

Back4App is an easy-to-use, flexible and scalable backend based on Parse Platform.

backendless.com

Mobile and Web Baas, with 1 GB file storage free, push notifications of 50,000/month, and 1000 data objects in the table.

bismuth.cloud

Our AI will boostrap your Python API on our function runtime and hosted storage, build and host for free in our online editor or locally with your favorite tools.

BMC Developer Program

The BMC Developer Program provides documentation and resources to build and deploy digital innovations for your enterprise. Access to a comprehensive, personal sandbox that includes the platform, SDK, and a library of components that can be used to build and tailor apps.

connectycube.com

Unlimited chat messages, p2p voice & video calls, files attachments and push notifications. Free for apps up to 1000 users.

convex.dev

Reactive backend as a service, hosting your data (documents with relationships & serializable ACID transactions), serverless functions, and WebSockets to stream updates to various clients. Free for small projects - up to 1M records, 5M monthly function calls.

darklang.com

Hosted language combined with editor and infrastructure. Accessible during the beta, a generous free tier is planned after beta.

Firebase

Firebase helps you build and run successful apps. Free Spark Plan offers Authentication, Hosting, Firebase ML, Realtime Database, Cloud Storage, Testlab. A/B Testing, Analytics, App Distribution, App Indexing, Cloud Messaging (FCM), Crashlytics, Dynamic Links, In-App Messaging, Performance Monitoring, Predictions, and Remote Config are always free.

Flutter Flow

Build your Flutter App UI without writing a single line of code. Also has a Firebase integration. The free plan includes full access to UI Builder and Free templates.

getstream.io

Build scalable In-App Chat, Messaging, Video and audio, and Feeds in a few hours instead of weeks

hasura.io

Hasura extends your existing databases wherever it is hosted and provides an instant GraphQL API that can be securely accessed for web, mobile, and data integration workloads. Free for 1GB/month of data pass-through.

iron.io

Async task processing (like AWS Lambda) with free tier and 1-month free trial

nhost.io

Serverless backend for web and mobile apps. The free plan includes PostgreSQL, GraphQL (Hasura), Authentication, Storage, and Serverless Functions.

onesignal.com

Unlimited free push notifications. 10,000 email sends per month, with unlimited contacts and access to Auto Warm Up.

paraio.com

Backend service API with flexible authentication, full-text search and caching. Free for one app, 1GB of app data.

progress.com

Mobile backend, starter plan has unlimited requests/second, with 1 GB of data storage. Enterprise application support

pubnub.com

Free push notifications for up to 1 million messages/month and 100 active daily devices

pushbots.com

Push notification service. Free for up to 1.5 million pushes/month

pushcrew.com

Push notification service. Unlimited notifications for up to 2,000 Subscribers

pusher.com

Free, unlimited push notifications for 2000 monthly active users. A single API for iOS and Android devices.

quickblox.com

A communication backend for instant messaging, video, and voice calling, and push notifications

restspace.io

Configure a server with services for auth, data, files, email API, templates, and more, then compose into pipelines and transform data.

Salesforce Developer Program

Build apps Lightning fast with drag-and-drop tools. Customize your data model with clicks. Go further with Apex code. Integrate with anything using powerful APIs. Stay protected with enterprise-grade security. Customize UI with clicks or any leading-edge web framework. Free Developer Program gives access to the full Lightning Platform.

ServiceNow Developer Program

Rapidly build, test, and deploy applications that make work better for your organization. Free Instance & access to early previews.

simperium.com

Move data everywhere instantly and automatically, multi-platform, unlimited sending and storage of structured data, max. 2,500 users/month

Singlebase.cloud

SinglebaseCloud is an AI-powered all-in-one backend platform to accelerate app development. It offers tools like Vector DB, Relational Document DB, Auth, Search, and Storage, aiming to simplify backend development. Free/Starter Plan offers Relational Document DB, Auth, Search, Storage.

stackstorm.com

Event-driven automation for apps, services, and workflows, free without flow, access control, LDAP

streamdata.io

Turns any REST API into an event-driven streaming API. Free plan up to 1 million messages and ten concurrent connections.

Supabase

The Open Source Firebase Alternative to build backends. Free Plan offers Authentication, Realtime Database & Object Storage.

tyk.io

API management with authentication, quotas, monitoring and analytics. Free cloud offering

zapier.com

Connect the apps you use to automate tasks. Five zaps every 15 minutes and 100 tasks/month

IFTTT

Automate your favorite apps and devices. Free 2 Applets

Integrately

Automate tedious tasks with a single click. Free 100 Tasks, 15 Minute

LeanCloud

Mobile backend. 1GB of data storage, 256MB instance, 3K API requests/day, and 10K pushes/day are free. (API is very similar to Parse Platform)

Low-code Platform

Clappia

A low-code platform designed for building business process applications with customizable mobile and web apps. Offers a drag-and-drop interface, features like Offline Support, real-time location tracking and integration with various third-party services.

Basedash

Low-code platform for building internal admin panels and dashboards. Supports SQL databases and REST APIs.

BudiBase

Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8s

appsmith

Low code project to build admin panels, internal tools, and dashboards. Integrates with 15+ databases and any API.

ToolJet

Extensible low-code framework for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, etc., and build apps using drag-and-drop application builder.

ReTool

Low-code platform for building internal applications. Retool is highly hackable. If you can write it with JavaScript and an API, you can make it in Retool. The free tier allows up to five users per month, unlimited apps and API connections.

DronaHQ

DronaHQ - a low code platform that helps engineering teams and product managers to build internal tools, custom user journeys, digital experiences, automation, custom admin panels, operational apps 10X faster.

ILLA Cloud

ILLA Cloud - A robust open-source low-code platform for developers to build internal tools. By using ILLA's library of Components and Actions, developers can save massive amounts of time on building tools. Free for 5 team members.

outsystems.com

Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1 GB database

UI Bakery

Low-code platform that enables faster building of custom web applications. Supports building UI using drag and drop with a high level of customization through JavaScript, Python, and SQL. Available as both cloud and self-hosted solutions. Free for up to 5 users.

Mendix

Rapid Application Development for Enterprises, unlimited accessible sandbox environments supporting total users, 0.5 GB storage and 1 GB RAM per app. Also, Studio and Studio Pro IDEs are allowed in the free tier.

lil'bots

write and run scripts online utlizing free built-in APIs like OpenAI, Anthropic, Firecrawl and others. Great for building AI agents / internal tooling and sharing with team. Free-tier includes full access to APIs, AI coding assistant and 10,000 execution credits / month.

Web Hosting

Alwaysdata

100 MB free web hosting with support for MySQL, PostgreSQL, CouchDB, MongoDB, PHP, Python, Ruby, Node.js, Elixir, Java, Deno, custom web servers, access via FTP, WebDAV and SSH; mailbox, mailing list and app installer included.

Awardspace.com

Free web hosting + a free short domain, PHP, MySQL, App Installer, Email Sending & No Ads.

Bohr

Free for non commercial projects + Developer-First Deployment and Development Platform that minimizes infrastructure hassle and speed up setup.

Bubble

Visual programming to build web and mobile apps without code, free with Bubble branding.

dAppling Network

Decentralized web hosting platform for Web3 frontends focusing on increasing uptime and security and providing an additional access point for users.

DigitalOcean

Build and deploy three static sites for free on the App Platform Starter tier.

Drive To Web

Host directly to the web from Google Drive & OneDrive. Static sites only. Free forever. One site per Google/Microsoft account.

Fenix Web Server

A developer desktop app for hosting sites locally and sharing them publically (in real-time). Work however you like, using its beautiful user interface, API, and/or CLI.

Fern

Build and host a Markdown-based documentation site on Fern's free plan. You can even auto-generate an API reference for your site from API definition files. The site is hosted at _yoursite_.docs.buildwithfern.com.

Free Hosting

Free Hosting With PHP 5, Perl, CGI, MySQL, FTP, File Manager, POP E-Mail, free sub-domains, free domain hosting, DNS Zone Editor, Web Site Statistics, FREE Online Support and many more features not offered by other free hosts.

Freehostia

FreeHostia offers free hosting services incl. an industry-best Control Panel & a 1-click installation of 50+ free apps. Instant setup. No forced ads.

HelioHost

Non-profit free web hosting with Plesk control panel, PHP, Node.js, Python, Django, Flask, .NET, Perl, CGI, MySQL, PostgreSQL, SQLite, IMAP/POP3/SMTP email, unlimited bandwidth, free subdomains, 1000 MB storage for free with the option to upgrade.

Kinsta Static Site Hosting

Deploy up to 100 static sites for free, custom domains with SSL, 100 GB monthly bandwidth, 260+ Cloudflare CDN locations.

Lecturify

Web hosting with SFPT access for file upload and download, php available.

Neocities

Static, 1 GB free storage with 200 GB Bandwidth.

Netlify

Builds, deploys and hosts static site/app free for 100 GB data and 100 GB/month bandwidth.

pantheon.io

Drupal and WordPress hosting, automated DevOps, and scalable infrastructure. Free for developers and agencies. No custom domain.

readthedocs.org

Free documentation hosting with versioning, PDF generation, and more

render.com

Unified cloud to build and run apps and sites with free SSL, a global CDN, private networks, auto-deploys from Git, and completely free plans for web services, databases, and static web pages.

SourceForge

Find, Create, and Publish Open Source software for free

surge.sh

Static web publishing for Front-End developers. Unlimited sites with custom domain support

telegra.ph

tilda.cc

One site, 50 pages, 50 MB storage, only the main pre-defined blocks among 170+ available, no fonts, no favicon, and no custom domain

Vercel

Build, deploy, and host web apps with free SSL, global CDN, and unique Preview URLs each time you `git push`. Perfect for Next.js and other Static Site Generators.

Versoly

SaaS-focused website builder - unlimited websites, 70+ blocks, five templates, custom CSS, favicon, SEO and forms. No custom domain.

Qoddi

PaaS service similar to Heroku with a developer-centric approach and all-inclusive features. Free tier for static assets, staging, and developer apps.

FreeFlarum

Community-powered free Flarum hosting for up to 250 users (donate to remove the watermark from the footer).

fleek.co

Build modern sites and apps on the Open Web and its protocols seamlessly free for unlimited websites and 50 GB/month bandwidth.

MDB GO

Free hosting for one project with two weeks Container TTL, 500 MB RAM per project, SFTP - 1G disk space.

Patr Cloud

An easy-to-use cloud platform, among its paid services it offers to host three static sites for free.

Serv00.com

3 GB of free web hosting with daily backups (7 days). Support: Crontab jobs, SSH access, repositories (GIT, SVN, and Mercurial), support: MySQL, PostgreSQL, MongoDB, PHP, Node.js, Python, Ruby, Java, Perl, TCL/TK, Lua, Erlang, Rust, Pascal, C, C++, D, R, and many more.

DNS

1.1.1.1

Free public DNS Resolver, which is fast and secure (encrypt your DNS query), provided by Cloudflare. Useful to bypass your internet provider's DNS blocking, prevent DNS query spying, and [to block adult & malware content](https://developers.cloudflare.com/1.1.1.1/1.1.1.1-for-families). It can also be used [via API](https://developers.cloudflare.com/1.1.1.1/encrypted-dns/dns-over-https/make-api-requests). Note: Just a DNS resolver, not a DNS hoster.

1984.is

Free DNS service with API and lots of other free DNS features included.

cloudns.net

Free DNS hosting up to 1 domain with 50 records

deSEC

Free DNS hosting with API support, designed with security in mind. Runs on open-source software and is supported by [SSE](https://www.securesystems.de/).

dns.he.net

Free DNS hosting service with Dynamic DNS Support

Zonomi

Free DNS hosting service with instant DNS propagation. Free plan: 1 DNS zone (domain name) with up to 10 DNS records.

dnspod.com

Free DNS hosting.

duckdns.org

Free DDNS with up to 5 domains on the free tier. With configuration guides for various setups.

Dynv6.com

Free DDNS service with [API support](https://dynv6.com/docs/apis) and management of a lot of dns record types (like CNAME, MX, SPF, SRV, TXT and others).

freedns.afraid.org

Free DNS hosting. Also, provide free subdomains based on numerous public user [contributed domains](https://freedns.afraid.org/domain/registry/). Get free subdomains from the "Subdomains" menu after signing up.

luadns.com

Free DNS hosting, three domains, all features with reasonable limits

namecheap.com

Free DNS. No limit on the number of domains

nextdns.io

DNS-based firewall, 300K free queries monthly

noip.at

Free DDNS service without registration, tracking, logging or advertising. No limit to domains.

noip

a dynamic DNS service that allows up to 3 hostnames free with confirmation every 30 days

sslip.io

Free DNS service that when queried with a hostname with an embedded IP address returns that IP address.

zilore.com

Free DNS hosting for 5 domains.

zoneedit.com

Free DNS hosting with Dynamic DNS Support.

zonewatcher.com

Automatic backups and DNS change monitoring. One domain free

huaweicloud.com

Hetzner

Glauca

Managed Data Services

Aiven

Aiven offers free PostgreSQL, MySQL and Redis plans on its open-source data platform. Single node, 1 CPU, 1GB RAM, and for PostgreSQL and MySQL, 5GB storage. Easy migration to more extensive plans or across clouds.

airtable.com

Looks like a spreadsheet, but it's a relational database unlimited bases, 1,200 rows/base, and 1,000 API requests/month

Astra

Cloud Native Cassandra as a Service with [80GB free tier](https://www.datastax.com/products/datastax-astra/pricing)

codehooks.io

Easy to use JavaScript serverless API/backend and NoSQL database service with functions, Mongdb-ish queries, key/value lookups, a job system, realtime messages, worker queues, a powerful CLI and a web-based data manager. Free plan has 5GB storage and 60/API calls per minute. 2 developers included. No credit-card required.

CrateDB

Distributed Open Source SQL database for real-time analytics. [Free Tier CRFREE](https://crate.io/lp-crfree): One-node with 2 CPUs, 2 GiB of memory, 8 GiB of storage. One cluster per organization, no payment method needed.

FaunaDB

Serverless cloud database with native GraphQL, multi-model access, and daily free tiers up to 100 MB

Upstash

Serverless Redis with free tier up to 10,000 requests per day, 256MB max database size, and 20 concurrent connections

MongoDB Atlas

free tier gives 512 MB

redsmin.com

Online real-time monitoring and administration service for Redis, Monitoring for 1 Redis instance free

redislabs

Free 30MB redis instance

MemCachier

Managed Memcache service. Free for up to 25MB, 1 Proxy Server, and basic analytics

scalingo.com

Primarily a PaaS but offers a 128MB to 192MB free tier of MySQL, PostgreSQL, or MongoDB

SeaTable

Flexible, Spreadsheet-like Database built by the Seafile team. unlimited tables, 2,000 lines, 1-month versioning, up to 25 team members.

skyvia.com

Cloud Data Platform offers a free tier and all plans are completely free while in beta

StackBy

One tool that combines spreadsheets' flexibility, databases' power, and built-in integrations with your favorite business apps. The free plan includes unlimited users, ten stacks, and a 2GB attachment per stack.

TiDB Cloud

TiDB is an open-source MySQL-compatible distributed HTAP RDBMS. TiDB Serverless provides 5GB of row storage, 5GB of column storage, and 50 million Request Units (RUs) for free each month.

Turso by ChiselStrike

Turso is SQLite Developer Experience in an Edge Database. Turso provides a Free Forever starter plan, 9 GB of total storage, Up to 500 databases, Up to 3 locations, 1 billion row reads per month, and Local development support with SQLite.

InfluxDB

Timeseries database, free up to 3MB/5 minutes writes, 30MB/5 minutes reads and 10,000 cardinalities series

restdb.io

a fast and straightforward NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries), and an efficient multi-user admin UI for working with data. The free plan allows 3 users, 2500 records, and 1 API request per second.

cockroachlabs.com

Free CockroachDB up to 5GB and 1vCPU (limited [request units](https://www.cockroachlabs.com/docs/cockroachcloud/serverless-faqs.html#what-are-the-usage-limits-of-cockroachdb-serverless-beta))

Neo4j Aura

Managed native Graph DBMS / analytics platform with a Cypher query language and a REST API. Limits on graph size (50k nodes, 175k relationships).

Neon

Managed PostgreSQL, 0.5 GB of storage (total), 1 Project ,10 branches, Unlimited Databases, always-available primary branch ( Auto suspend after 5 minutes), 20 hours of Active time per month (total) for non-primary branch compute.

Dgraph Cloud

Managed native Graph DBMS with a GraphQL API. Limited to 1 MB data transfer per day.

Tinybird

A serverless managed ClickHouse with connection-less data ingest over HTTP and lets you publish SQL queries as managed HTTP APIs. There is no time limit on free-tier, 10GB storage + 1000 API requests per day.

TigerGraph Cloud

Managed native Graph DBMS / analytics platform with a SQL-like graph query language and a REST API. One free instance with two vCPU, 8GB Memory, and 50GB storage that sleeps after 1 hour of inactivity.

TerminusCMS

Managed free service for TerminusDB, a document and graph database written in Prolog and Rust. Free for dev, paid service for enterprise deployments and support.

filess.io

filess.io is a platform where you can create two databases with up to 10 MB per database of the following DBMS for free: MySQL, MariaDB, MongoDB, and PostgreSQL.

xata.io

Xata is a serverless database with built-in powerful search and analytics. One API, multiple type-safe client libraries, and optimized for your development workflow. The free-forever tier is sufficient for hobby developers which comes with three units of Xata, please refer to the website for unit definition.

8base.com

8base is a full-stack low-code development platform built for JavaScript developers built on top of MySQL and GraphQL and serverless backend-as-a-service. It allows you to start building web applications quickly using a UI app builder and scale quickly, The Free tier includes rows: 2,500, Storage: 500, Serverless computing: 1Gb/h, and client app users: 5.

Nile

A Postgres platform for B2B apps. Unlimited databases, Always available with no shutdown, 1GB of storage (total), 50 million query tokens, autoscaling, unlimited vector embeddings

Tunneling, WebRTC, Web Socket Servers and Other Routers

Pinggy

Public URLs for localhost with a single command, no downloads required. HTTPS / TCP / TLS tunnels. The free plan has 60 minutes tunnel lifetime.

conveyor.cloud

Visual Studio extension to expose IIS Express to the local network or over a tunnel to a public URL.

Hamachi

LogMeIn Hamachi is a hosted VPN service that lets you securely extend LAN-like networks to distributed teams with a free plan that allows unlimited networks with up to 5 people

Mirna Sockets

Free Socket as a Service Platform that gives you a wss:// URL when deploying your Web Socket Server code and also allows you to monitor its performance.

localhost.run

Expose locally running servers over a tunnel to a public URL.

localtunnel

Expose locally running servers over a tunnel to a public URL. Free hosted version, and [open source](https://github.com/localtunnel/localtunnel).

ngrok.com

Expose locally running servers over a tunnel to a public URL.

cname.dev

Free and secure dynamic reverse proxy service.

serveo

Expose local servers to the internet. No installation, no signup. Free subdomain, no limits.

Radmin VPN

Connect multiple computers together via a VPN-enabling LAN-like network. Unlimited peers. (Hamachi alternative)

segment.com

Hub to translate and route events to other third-party services. 100,000 events/month free

Tailscale

Zero config VPN, using the open-source WireGuard protocol. Installs on MacOS, iOS, Windows, Linux, and Android devices. Free plan for personal use with 100 devices and three users.

webhookrelay.com

Manage, debug, fan-out, and proxy all your webhooks to public or internal (i.e. localhost) destinations. Also, expose servers running in a private network over a tunnel by getting a public HTTP endpoint (`https://yoursubdomain.webrelay.io <----> http://localhost:8080`).

Hookdeck

Develop, test, and monitor your webhooks from anywhere. 100K requests and 100K attempts per month with three days retention.

Xirsys

Unlimited STUN usage + 500 MB monthly TURN bandwidth, capped bandwidth, single geographic region.

ZeroTier

FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 25 clients on the free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks

LocalXpose

Reverse proxy that enables you to expose your localhost servers to the internet. The free plan has 15 minutes tunnel lifetime.

Traefik-Hub

Publish locally, running services over a tunnel to a public custom URL and secure them with access control. Free for 5 services in one cluster.

Expose

Expose local sites via secure tunnels. The free plan includes an EU Server, Random subdomains, and Single users.

btunnel

Expose localhost and local tcp server to the internet. Free plan includes file server, custom http request and response headers, basic auth protection and 1 hour tunnel timeout.

Issue Tracking and Project Management

acunote.com

Free project management and SCRUM software for up to 5 team members

asana.com

Free for private project with collaborators

Backlog

Everything your team needs to release great projects in one platform. The free plan offers 1 Project with ten users & 100MB of storage.

Basecamp

To-do lists, milestone management, forum-like messaging, file sharing, and time tracking. Up to 3 projects, 20 users, and 1GB of storage space.

bitrix24.com

Intranet and project management tool. The free plan has 5GB for unlimited users.

cacoo.com

Online real-time diagrams: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets

Chpokify

Teams-based Planning Poker that saves time on sprint estimation. Free up to 5 users, free Jira integrations, unlimited video calls, unlimited teams, unlimited sessions.

clickup.com

Project management. Free, premium version with cloud storage. Mobile applications and Git integrations are available.

Clockify

Time tracker and timesheet app that lets you track work hours across projects. Unlimited users, free forever.

Cloudcraft

Design a professional architecture diagram in minutes with the Cloudcraft visual designer, optimized for AWS with intelligent components that show live data too. Free plan has unlimited private diagrams for single user.

Codegiant

Project Management with Repository hosting & CI/CD. Free Plan Offers Unlimited Repositories, Projects & Documents with 5 Team Members. 500 CI/CD minutes per month. 30000 Serverless Code Run minutes per month 1GB repository storage.

Confluence

Atlassian's content collaboration tool is used to help teams collaborate and share knowledge efficiently. Free plan for up to 10 users.

contriber.com

Customizable project management platform, free starter plan, five workspaces

Crosswork

Versatile project management platform. Free for up to 3 projects, unlimited users, 1 GB storage.

diagrams.net

Online diagrams stored locally in Google Drive, OneDrive, or Dropbox. Free for all features and storage levels

freedcamp.com

tasks, discussions, milestones, time tracking, calendar, files and password manager. Free plan with unlimited projects, users, and file storage.

easyretro.io

Simple and intuitive sprint retrospective tool. The free plan has three public boards and one survey per board per month.

GForge

Project Management and issue Tracking toolset for complex projects with self-premises and SaaS options. SaaS free plan offers the first five users free & free for Open Source Projects.

gleek.io

Free description-to-diagrams tool for developers. Create informal UML class, object, or entity-relationship diagrams using your keyword.

GraphQL Inspector

GraphQL Inspector outputs a list of changes between two GraphQL schemas. Every difference is precisely explained and marked as breaking, non-breaking, or dangerous.

huboard.com

Instant project management for your GitHub issues, free for Open Source

Hygger

Project management platform. The free plan offers unlimited users, projects & boards with 100 MB of Storage.

Instabug

A comprehensive bug reporting and in-app feedback SDK for mobile apps. Free plan up to 1 app and one member.

WishKit

Collect in-app user feedback for your iOS/macOS app and prioritize features based on user votes. Free plan up to 1 app.

Ilograph

interactive diagrams that allow users to see their infrastructure from multiple perspectives and levels of detail. Charts can be expressed in code. The free tier has unlimited private diagrams with up to 3 viewers.

Jira

Advanced software development project management tool used in many corporate environments. Free plan for up to 10 users.

kanbanflow.com

Board-based project management. Free, premium version with more options

kanbantool.com

Kanban board-based project management. The free plan has two boards and two users, without attachments or files.

Kitemaker.co

Collaborate through all phases of the product development process and keep track of work across Slack, Discord, Figma, and Github. Unlimited users, unlimited spaces. Free plan up to 250 work items.

Kiter.app

Let anyone organize their job search and track interviews, opportunities, and connections. Powerful web app and Chrome extension. Completely free.

Kumu.io

Relationship maps with animation, decorations, filters, clustering, spreadsheet imports, etc. The free tier allows unlimited public projects. Graph size unlimited. Free private projects for students. Sandbox mode is available if you prefer not to leave your file publicly online (upload, edit, download, discard).

Linear

Issue tracker with a streamlined interface. Free for unlimited members, up to 10MB file upload size, 250 issues (excluding Archive)

leiga.com

Leiga is a SaaS product that uses AI to automatically manage your projects, helping your team stay focused and unleash immense potential, ensuring your projects progress as planned. Free for up to 10 users, 20 custom fields, 2GB of storage space, Video Recording with AI limited to 5 mins/video, Automation Runs at 20/user/month.

Lucidchart

An online diagram tool with collaboration features. Free plan with three editable documents, 100 professional templates, and basic collaboration features.

MeisterTask

Online task management for teams. Free up to 3 projects and unlimited project members.

MeuScrum

Free online scrum tool with kanban board

nTask

Project management software that enables your teams to collaborate, plan, analyze, and manage everyday tasks. The essential plan is free forever with 100 MB storage and five users/teams. Unlimited workspaces, meetings, assignments, timesheets, and issue tracking.

Ora

Agile task management & team collaboration. Free for up to 3 users and files are limited to 10 MB.

pivotaltracker.com

Free for unlimited public projects and two private projects with three total active users (read-write) and unlimited passive users (read-only).

plan.io

Project Management with Repository Hosting and more options. Free for two users with ten customers and 500MB Storage

Plane

Plane is a simple, extensible, open-source project and product management tool. Free for unlimited members, up to 5MB file upload size, 1000 issues.

planitpoker.com

Free online planning poker (estimation tool)

point.poker

Online Planning Poker (consensus-based estimation tool). Free for unlimited users, teams, sessions, rounds, and votes. You don't need to register.

ScrumFast

Scrum board with a very intuitive interface, free up to 5 users.

Shake

In-app bug reporting and feedback tool for mobile apps. Free plan, ten bug reports per app/month.

Shortcut

Project management platform. Free for up to 10 users forever.

Tadum

Meeting agenda and minutes app designed for recurring meetings, free for teams of up to 10

taiga.io

Project management platform for startups and agile developers, free for Open Source

Tara AI

Simple sprint management service. The free plan has unlimited tasks, sprints, and workspaces without user limits.

targetprocess.com

Visual project management, from Kanban and Scrum to almost any operational process. Free for unlimited users, up to 1,000 data entities {[more details](https://www.targetprocess.com/pricing/)}

taskade.com

Real-time collaborative task lists and team outlines. The free plan has one workspace with unlimited tasks and projects; 1GB file storage; 1-week project history; and five attendees per video meeting.

taskulu.com

Role based project management. Free up to 5 users. Integration with GitHub/Trello/Dropbox/Google Drive

Teaminal

Standup, retro, and sprint planning tool for remote teams. Free for up to 15 users.

teamwork.com

Project management & Team Chat. Free for five users and two projects. Premium plans are available.

teleretro.com

Simple and fun retrospective tool with icebreakers, gifs and emojis. The free plan includes three retros and unlimited members.

testlio.com

Issue tracking, test management and beta testing platform. Free for private use

terrastruct.com

Online diagram maker specifically for software architecture. Free tier up to 4 layers per diagram.

todoist.com

Collaborative and individual task management. The free plan has: 5 active projects, five users in the project, file uploading up to 5MB, three filters, and one week of activity history.

trello.com

Board-based project management. Unlimited Personal Boards, 10 Team Boards.

Tweek

Simple Weekly To-Do Calendar & Task Management.

ubertesters.com

Test platform, integration and crowd testers, 2 projects, five members

Wikifactory

Product designing Service with Projects, VCS & Issues. The free plan offers unlimited projects & collaborators and 3GB storage.

Yodiz

Agile development and issue tracking. Free up to 3 users, unlimited projects.

YouTrack

Free hosted YouTrack (InCloud) for FOSS projects and private projects (free for three users). Includes time tracking and agile boards

zenhub.com

The only project management solution inside GitHub. Free for public repos, OSS, and nonprofit organizations

zenkit.com

Project management and collaboration tool. Free for up to 5 members, 5 GB attachments.

Zube

Project management with free plan for 4 Projects & 4 users. GitHub integration is available.

Toggl

Provides two free productivity tools. [Toggl Track](https://toggl.com/track/) for time management and tracking app with a free plan provides seamless time tracking and reporting designed with freelancers in mind. It has unlimited tracking records, projects, clients, tags, reporting, and more. And [Toggl Plan](https://toggl.com/plan/) for task planning with a free plan for solo developers with unlimited tasks, milestones, and timelines.

Sflow

sflow.io is a project management tool built for agile software development, marketing, sales, and customer support, especially for outsourcing and cross-organization collaboration projects. Free plan up to 3 projects and five members.

Pulse.red

Free Minimalistic Time Tracker and Timesheet app for projects.

Storage and Media Processing

AndroidFileHost

Free file-sharing platform with unlimited speed, bandwidth, file count, download count, etc. It is mainly aimed for Android dev-related files like APK build, custom ROM & modifications, etc. But seems to accept any other files as well.

borgbase.com

Simple and secure offsite backup hosting for Borg Backup. 10 GB free backup space and two repositories.

icedrive.net

Simple cloud storage service. 10 GB free storage

sync.com

End-to-End cloud storage service. 5 GB of free storage

pcloud.com

Cloud storage service. Up to 10 GB of free storage

sirv.com

Smart Image CDN with on-the-fly image optimization and resizing. The free tier includes 500 MB of storage and 2 GB of bandwidth.

cloudimage.io

Full image optimization and CDN service with 1500+ Points of Presence around the world. A variety of image resizing, compression, and watermarking functions. Open source plugins for responsive images, 360 image making and image editing. Free monthly plan with 25GB of CDN traffic 25GB of cache storage and unlimited transformations.

cloudinary.com

Image upload, powerful manipulations, storage, and delivery for sites and apps, with Ruby, Python, Java, PHP, Objective-C, and more libraries. The free tier includes 25 monthly credits. One credit equals 1,000 image transformations, 1 GB of storage, or 1 GB of CDN usage.

embed.ly

Provides APIs for embedding media in a webpage, responsive image scaling, and extracting elements from a webpage. Free for up to 5,000 URLs/month at 15 requests/second

filestack.com

File picker, transform, and deliver, free for 250 files, 500 transformations, and 3 GB bandwidth

file.io

2 GB storage of files. A file is auto-deleted after one download. REST API to interact with the storage. Rate limit one request/minute.

freetools.site

Free online tools. Convert or edit documents, images, audio, video, and more.

GoFile.io

Free file sharing and storage platform can be used via web-based UI & also API. unlimited file size, bandwidth, download count, etc. But it will be deleted when a file becomes inactive (no download for more than ten days).

gumlet.com

Image and video hosting, processing and streaming via CDN. Provides generous free tier of 250 GB / month for videos and 30 GB / month for images.

image-charts.com

Unlimited image chart generation with a watermark

Imgbot

Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source.

ImgBB

ImgBB is an unlimited image hosting servce. Drag and drop your image anywhere on the screen. 32 MB / image limit. Receive Direct image links, BBCode and HTML thumbnails after uploading image. Login to see the upload history.

imgen

Free unlimited social cover image generation API, no watermark

imgix

Image Caching, management and CDN. Free plan includes 1000 origin images, infinite transformations and 100 GB bandwidth

kraken.io

Image optimization for website performance as a service, free plan up to 1 MB file size

kvstore.io

Key-value storage service. The free tier allows 100 keys, 1KB/key, 100 calls/hour

npoint.io

JSON store with collaborative schema editing

nitropack.io

Accelerate your site's speed on autopilot with complete front-end optimization (caching, images and code optimization, CDN). Free for up to 5,000 pageviews/month

otixo.com

Encrypt, share, copy, and move all your cloud storage files from one place. The basic plan provides unlimited file transfer with 250 MB max. file size and allows five encrypted files

packagecloud.io

Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans and open-source plans are available via request

getpantry.cloud

A simple JSON data storage API perfect for personal projects, hackathons, and mobile apps!

Pinata IPFS

Pinata is the simplest way to upload and manage files on IPFS. Our friendly user interface and IPFS API make Pinata the easiest IPFS pinning service for platforms, creators, and collectors. 1 GB storage free, along with access to API.

placekitten.com

A quick and simple service for getting pictures of kittens for use as placeholders

plot.ly

Graph and share your data. The free tier includes unlimited public files and ten private files

podio.com

You can use Podio with a team of up to five people and try out the features of the Basic Plan, except user management

QuickChart

Generate embeddable image charts, graphs, and QR codes

redbooth.com

P2P file syncing, free for up to 2 users

resmush.it

reSmush.it is a FREE API that provides image optimization. reSmush.it has been implemented on the most common CMS such as WordPress, Drupal, or Magento. reSmush.it is the most used image optimization API with more than seven billion images already treated, and it is still Free of charge.

Shotstack

API to generate and edit video at scale. Free up to 20 minutes of rendered video per month

tinypng.com

API to compress and resize PNG and JPEG images, offers 500 compressions for free each month

transloadit.com

Handles file uploads and encoding of video, audio, images, documents. Free for Open source, charities, and students via the GitHub Student Developer Pack. Commercial applications get 2 GB free for test driving

twicpics.com

Responsive images as a service. It provides an image CDN, a media processing API, and a frontend library to automate image optimization. The service is free for up to 3GB of traffic/per month.

uploadcare.com

Uploadcare provides the media pipeline with the ultimate toolkit based on cutting-edge algorithms. All features are available for developers absolutely for free: File Uploading API and UI, Image CDN and Origin Services, Adaptive Delivery, and Smart Compression. The free tier has 3000 uploads, 3 GB traffic, and 3 GB storage.

imagekit.io

internxt.com

degoo.com

MConverter.eu

ImageEngine

DocsParse

Design and UI

AllTheFreeStock

a curated list of free stock images, audio and videos.

Float UI

free web development tool for quickly creating modern, responsive websites with sleek design, even for non-designers.

Ant Design Landing Page

Ant Design Landing Page provides a template built by Ant Motion's motion components. It has a rich homepage template, downloads the template code package, and can be used quickly. You can also use the editor to quickly build your own dedicated page.

Backlight

With collaboration between developers and designers at heart, Backlight is a complete coding platform where teams build, document, publish, scale, and maintain Design Systems. The free plan allows up to 3 editors to work on one design system with unlimited viewers.

BoxySVG

A free installable Web app for drawing SVGs and exporting in SVG, PNG, jpeg, and other formats.

Carousel Hero

Free online tool to create social media carousels.

Circum Icons

Consistent open-source icons such as SVG for React, Vue, and Svelte.

clevebrush.com

Free Graphics Design / Photo Collage App. Also, they offer paid integration of it as a component.

cloudconvert.com

Convert anything to anything. Two hundred eight supported formats including videos and gifs.

CodeMyUI

Handpicked collection of Web Design & UI Inspiration with Code Snippets.

ColorKit

Create color palettes online or get inspiration from top palettes.

coolors

Color palette generator. Free.

Branition

Hand-curated color pallets best fitted for brands.

css-gradient.com

Free tool to quickly generate custom cross-browser CSS gradients. In RGB and HEX format.

easyvectors.com

EasyVectors.com is a free SVG vector art stock. Download the best vector graphics absolutely for free.

figma.com

Online, collaborative design tool for teams; free tier includes unlimited files and viewers with a max of 2 editors and three projects.

Flyon UI

framer.com

Framer helps you iterate and animate interface ideas for your next app, website, or product—starting with powerful layouts. For anyone validating Framer as a professional prototyping tool: unlimited viewers, up to 2 editors, and up to 3 projects.

freeforcommercialuse.net

FFCU Worry-free model/property release stock photos

Gradientos

Makes choosing a gradient fast and easy.

Icon Horse

Iconoir

Icons8

Icons, illustrations, photos, music, and design tools. Free Plan offers Limited formats in lower resolution. Link to Icons8 when you use our assets.

landen.co

Generate, edit, and publish beautiful websites and landing pages for your startup. All without code. The free tier allows you to have one website, fully customizable and published on the web.

Quant Ux

Quant Ux is a prototyping and design tool. - It's completely free and also open source.

lensdump.com

Free cloud image hosting.

Lorem Picsum

A Free tool, easy to use, stylish placeholders. After our URL, add your desired image size (width & height), and you'll get a random image.

LottieFiles

The world's largest online platform for the world's most miniature animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.

MagicPattern

A collection of CSS & SVG background generators & tools for gradients, patterns, and blobs.

marvelapp.com

Design, prototyping, and collaboration, free plan limited to one user and project.

Mindmup.com

Unlimited mind maps for free and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.

Mockplus iDoc

Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes three users and five projects with all features available.

mockupmark.com

Create realistic t-shirt and clothing mockups for social media and E-commerce, 40 free mockups.

Mossaik

Free SVG image generator with different tools like waves, blogs and patterns.

movingpencils.com

Fast, browser-based vector editor. Completely free.

Octopus.do

Visual sitemap builder. Build your website structure in real time and rapidly share it to collaborate with your team or clients.

Pencil

Open source design tool using Electron.

Penpot

Web-based, open-source design and prototyping tool. Supports SVG. Completely free.

pexels.com

Free stock photos for commercial use. Has a free API that allows you to search photos by keywords.

photopea.com

A Free, Advanced online design editor with Adobe Photoshop UI supporting PSD, XCF & Sketch formats (Adobe Photoshop, Gimp and Sketch App).

pixlr.com

Free online browser editor on the level of commercial ones.

Plasmic

A fast, easy-to-use, robust web design tool and page builder that integrates into your codebase. Build responsive pages or complex components; optionally extend with code; and publish to production sites and apps.

Pravatar

Generate a random/placeholder fake avatar whose URL can be directly hot-linked in your web/app.

Proto.io

Create fully interactive UI prototypes without coding. The free tier is available when the free trial ends. The free tier includes one user, one project, five prototypes, 100MB of online storage, and a preview of the proto.io app.

resizeappicon.com

A simple service to resize and manage your app icons.

Rive

Create and ship beautiful animations to any platform. Free forever for Individuals. The service is an editor that also hosts all the graphics on their servers. They also provide runtimes for many platforms to run representations made using Rive.

storyset.com

Create incredible free customized illustrations for your project using this tool.

smartmockups.com

Create product mockups, 200 free mockups.

tabler-icons.io

Over 1500 free copy-and-paste SVG editable icons.

UI Avatars

Generate avatars with initials from names. The URLs can be directly hot-linked in your web/app. Support config parameters via the URL.

unDraw

A constantly updated collection of beautiful SVG images that you can use completely free without attribution.

unsplash.com

Free stock photos for commercial and noncommercial purposes (do-whatever-you-want license).

vectr.com

Free Design App for Web + Desktop.

walkme.com

Enterprise Class Guidance and Engagement Platform, free plan three walk-thru up to 5 steps/walk.

Webflow

WYSIWYG website builder with animations and website hosting. Free for two projects.

Updrafts.app

WYSIWYG website builder for tailwindcss-based designs. Free for non-commercial usage.

whimsical.com

Collaborative flowcharts, wireframes, sticky notes and mind maps. Create up to 4 free boards.

Zeplin

Designer and developer collaboration platform. Show designs, assets, and style guides. Free for one project.

Pixelixe

Create and edit engaging, unique graphics and images online.

Responsively App

A free dev tool for faster and more precise responsive web application development.

SceneLab

Online mockup graphics editor with an ever-expanding collection of free design templates

xLayers

Preview and convert Sketch design files into Angular, React, Vue, LitElement, Stencil, Xamarin, and more (free and open source at https://github.com/xlayers/xlayers)

Grapedrop

Responsive, powerful, SEO-optimized web page builder based on GrapesJS Framework. Free for the first five pages, unlimited custom domains, all features, and simple usage.

Mastershot

Completely free browser-based video editor. No watermark, up to 1080p export options.

Unicorn Platform

Effortless landing page builder with hosting. One website for free.

SVGmix.com

Massive repository of 300K+ of free SVG icons, collections, and brand logos. It has a simple vector editing program right in the browser for quick file editing.

svgrepo.com

Explore, search, and find the best-fitting icons or vectors for your projects using various vector libraries. Download free SVG Vectors for commercial use.

haikei.app

Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.

Canva

Free online design tool to create visual content.

Superdesigner

A collection of free design tools to create unique backgrounds, patterns, shapes, images, and more with just a few clicks.

TeleportHQ

Low-code Front-end Design & Development Platform. TeleportHQ is the collaborative front-end platform to instantly create and publish headless static websites. Three free projects, unlimited collaborators, and free code export.

vector.express

Convert your AI, CDR, DWG, DXF, EPS, HPGL, PDF, PLT, PS and SVG vector fast and easily.

Vertopal

Vertopal is a free online platform for converting files to various formats. Including developer converters like JPG to SVG, GIF to APNG, PNG to WEBP, JSON to XML, etc.

okso.app

Minimalistic online drawing app. Allows to create fast sketches and visual notes. Exports sketches to PNG, JPG, SVG, and WEBP. Also installable as PWA. Free to use for everyone (no registration is needed).

Wdrfree SVG

Black and White Free SVG Cut files.

Lucide

Free customizable and consistent SVG icon toolkit.

Logo.dev

Company logo API with 44M+ brands that's as easy as calling a URL. First 10,000 API calls are free.

MDBootstrap

Free for personal & commercial use Bootstrap, Angular, React, and Vue UI Kits with over 700 components, stunning templates, 1-min installation, extensive tutorials & colossal community.

TW Elements

Free Bootstrap components recreated with Tailwind CSS, but with better design and more functionalities.

DaisyUI

Scrollbar.app

css.glass

hypercolor.dev

iconify.design

NextUI

Glyphs

ShadcnUI

HyperUI

Calendar Icons Generator

Image BG Blurer

Webstudio

Nappy

Tailkits

Tailcolors

Design Inspiration

awwwards.

[Top websites] A showcase of all the best-designed websites (voted on by designers).

Behance

[Design showcase] A place where designers showcase their work. Filterable with categories for UI/UX projects.

dribbble

[Design showcase] Unique design inspiration, generally not from real applications.

Landings

[Web screenshots] Find the best landing pages for your design inspiration based on your preference.

Lapa Ninja

[Landing page / UI KIts / Web screenshots] Lapa Ninja is a gallery featuring the best 6025 landing page examples, free books for designers and free UI kits from around the web.

LovelyLanding.net

[Landing Page Designs] Frequently updated landing page screenshots. Includes Desktop, Tablet, and Mobile screenshots.

Mobbin

[Mobile screenshots] Save hours of UI & UX research with our library of 50,000+ fully searchable mobile app screenshots.

Uiland Design

[Mobile screenshots] Explore Mobile and Web UI Designs from Leading Companies in Africa and the world.

Mobile Patterns

[Mobile screenshots] A design inspirational library featuring the finest UI UX Patterns (iOS and Android) for designers, developers, and product makers to reference.

Page Flows

[Mobile / web videos and screenshots] Videos of full flows across many mobile and web apps. Also includes screenshots. Highly searchable and indexed.

Screenlane

[Mobile screenshots] Get inspired and keep up with the latest web & mobile app UI design trends. Filterable by pattern and app.

scrnshts

[Mobile screenshots] A hand-picked collection of the finest app store design screenshots.

UI Garage

[Mobile / web screenshots] Daily UI inspiration & patterns for designers and developers to find inspiration, tools, and the best resources for your project.

Refero

[Web screenshots] Tagged and searchable collection of design references from great web applications.

Data Visualization on Maps

IP Geolocation

Free DEVELOPER plan available with 30K requests/month.

carto.com

Create maps and geospatial APIs from your and public data.

Clockwork Micro

Map tools that work like clockwork. Fifty thousand free monthly queries (map tiles, db2vector, elevation).

developers.arcgis.com

APIs and SDKs for maps, geospatial data storage, analysis, geocoding, routing, and more across web, desktop, and mobile. Two million free base map tiles, 20,000 non-stored geocodes, 20,000 simple routes, 5,000 drive time calculations, and 5GB free tile+data storage per month.

Foursquare

Location discovery, venue search, and context-aware content from Places API and Pilgrim SDK.

geoapify.com

Vector and raster map tiles, geocoding, places, routing, isolines APIs. Three thousand free requests/day.

geocod.io

Geocoding via API or CSV Upload. Two thousand five hundred free queries/day.

geocodify.com

Geocoding and Geoparsing via API or CSV Upload. 10k free queries/month.

geojs.io

Highly available REST/JSON/JSONP IP Geolocation lookup API.

giscloud.com

Visualize, analyze, and share geo data online.

graphhopper.com

here

APIs and SDKs for maps and location-aware apps. 250k transactions/month for free.

locationiq.com

Geocoding, Maps, and Routing APIs. Five thousand requests/day for free.

mapbox.com

Maps, geospatial services and SDKs for displaying map data.

maptiler.com

Vector maps, map services and SDKs for map visualization. Free vector tiles with weekly updates and four map styles.

nominatim.org

OpenStreetMap's free geocoding service, providing global address search functionality and reverse geocoding capabilities.

nextbillion.ai

Maps related services: Geocoding, Navigation (Direction, Routing, Route Optimization, Distance Matrix), Maps SDK (Vector, Static, Mobile SDK). [Free with specified quota](https://nextbillion.ai/pricing) for each services.

opencagedata.com

Geocoding API aggregating OpenStreetMap and other open geo sources. Two thousand five hundred free queries/day.

osmnames

Geocoding, search results ranked by the popularity of related Wikipedia page.

positionstack

Free geocoding for global places and coordinates. 25,000 Requests per month for personal use.

stadiamaps.com

Map tiles, routing, navigation, and other geospatial APIs. Two thousand five hundred free map views and API requests/day for non-commercial usage and testing.

maps.stamen.com

Free map tiles and tile hosting.

ipstack

Locate and identify Website Visitors by IP Address

Geokeo api

Geocoding API with language correction and more. Worldwide coverage. 2,500 free daily queries

IDE and Code Editing

3v4l

Free online PHP shell and snippet-sharing site, that runs your code in 300+ PHP versions

Android Studio

Android Studio provides the fastest tools for building apps on every type of Android device. Open Source IDE is free for everyone and the best Android app development. Available for Windows, Mac, Linux, and even ChromeOS!

AndroidIDE

An Open Source IDE to develop real, Gradle-based Android applications on Android devices.

Apache Netbeans

Development Environment, Tooling Platform and Application Framework.

apiary.io

Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited users with one admin account and hosted documentation).

BBEdit

BBEdit is a popular and extensible editor for macOS. Free Mode provides a [powerful core feature set](https://www.barebones.com/products/bbedit/comparison.html) and an upgrade path to advanced features.

Binder

Turn a Git repo into a collection of interactive notebooks. It is a free public service.

BlueJ

A free Java Development Environment designed for beginners, used by millions worldwide. Powered by Oracle & simple GUI to help beginners.

Bootify.io

Spring Boot app generator with custom database and REST API.

Brackets

Brackets is an open-source text editor specifically designed for web development. It is lightweight, easy to use, and highly customizable.

cacher.io

Code snippet organizer with labels and support for 100+ programming languages.

Code::Blocks

Free Fortran & C/C++ IDE. Open Source and runs on Windows,macOS & Linux.

Cody

Free AI coding assistant that can write (Code blocks, autocomplete, unit tests), understand (knowledge of your entire codebase), fix, and find your code. Available for VS Code, JetBrains and Online.

codiga.io

Coding Assistant that lets you search, define, and reuse code snippets directly in your IDE. Free for individual and small organizations.

codesnip.com.br

Simple code snippets manager with categories, search and tags. free and unlimited.

cocalc.com

(formerly SageMathCloud at cloud.sagemath.com) — Collaborative calculation in the cloud. Browser access to full Ubuntu with built-in collaboration and lots of free software for mathematics, science, data science, preinstalled: Python, LaTeX, Jupyter Notebooks, SageMath, scikitlearn, etc.

code.cs50.io

Visual Studio Code for CS50 is a web app at code.cs50.io that adapts GitHub Codespaces for students and teachers.

codepen.io

CodePen is a playground for the front-end side of the web.

codesandbox.io

Online Playground for React, Vue, Angular, Preact, and more.

Components.studio

Code components in isolation, visualize them in stories, test them, and publish them on npm.

Eclipse Che

Web-based and Kubernetes-Native IDE for Developer Teams with multi-language support. Open Source and community-driven. An online instance hosted by Red Hat is available at [workspaces.openshift.com](https://workspaces.openshift.com/).

fakejson.com

FakeJSON helps you quickly generate fake data using its API. Make an API request describing what you want and how you want it. The API returns it all in JSON. Speed up the go-to-market process for ideas and fake it till you make it.

GetVM

Instant free Linux and IDEs chrome sidebar. The free tier includes 5 VMs per day.

GitPod

Instant, ready-to-code dev environments for GitHub projects. The free tier includes 50 hours/month.

ide.goorm.io

JDoodle

Online compiler and editor for more than 60 programming languages with a free plan for REST API code compiling up to 200 credits per day.

jetbrains.com

Productivity tools, IDEs and deploy tools (aka [IntelliJ IDEA](https://www.jetbrains.com/idea/), [PyCharm](https://www.jetbrains.com/pycharm/), etc). Free license for students, teachers, Open Source and user groups.

jsbin.com

JS Bin is another playground and code-sharing site of front-end web (HTML, CSS, and JavaScript. It Also supports Markdown, Jade, and Sass).

jsfiddle.net

JS Fiddle is a playground and code-sharing site of front-end web, supporting collaboration.

JSONPlaceholder

Lazarus

Lazarus is a Delphi-compatible cross-platform IDE for Rapid Application Development.

MarsCode

A free AI-powered cloud-based IDE.

micro-jaymock

Tiny API mocking microservice for generating fake JSON data.

mockable.io

Mockable is a simple configurable service to mock out RESTful API or SOAP web services. This online service allows you to quickly define REST API or SOAP endpoints and have them return JSON or XML data.

mockaroo

Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API.

Mocklets

an HTTP-based mock API simulator that helps simulate APIs for faster parallel development and more comprehensive testing, with a lifetime free tier.

Paiza

Develop Web apps in Browser without needing to set up anything. Free Plan offers one server with 24 24-hour lifetime and 4 hours of running time per day with 2 CPU cores, 2 GB RAM, and 1 GB storage.

Prepros

Prepros can compile Sass, Less, Stylus, Pug/Jade, Haml, Slim, CoffeeScript, and TypeScript out of the box, reloads your browsers and makes it easy to develop & test your websites so you can focus on making them perfect. You can also add your own tools with just a few clicks.

Replit

A cloud coding environment for various program languages.

SoloLearn

A cloud programming playground well-suited for running code snippets. Supports various programming languages. No registration is required for running code, but it is necessary when saving code on their platform. Also offers free courses for beginners and intermediate-level coders.

stackblitz.com

Online/Cloud Code IDE to create, edit, & deploy full-stack apps. Support any popular NodeJs-based frontend & backend frameworks. Shortlink to create a new project: [https://node.new](https://node.new).

Sublime Text

Sublime Text is a popular, versatile, and highly customizable text editor used for coding and text editing tasks.

Visual Studio Code

Code editor redefined and optimized for building and debugging modern web and cloud applications. Developed by Microsoft.

Visual Studio Community

Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).

VSCodium

Community-driven, without telemetry/tracking, and freely-licensed binary distribution of Microsoft's editor VSCode

wakatime.com

Quantified self-metrics about your coding activity using text editor plugins, limited plan for free.

Wave Terminal

Wave is an open-source, cross-platform terminal for seamless workflows. Render anything inline. Save sessions and history. Powered by open web standards. MacOS and Linux.

WebComponents.dev

In-browser IDE to code web components in isolation with 58 templates available, supporting stories, and tests.

PHPSandbox

Online development environment for PHP

WebDB

Free Efficient Database IDE. Featuring Server Discovery, ERD, Data Generator, AI, NoSQL Structure Manager, Database Versioning and many more.

Zed

Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

OneCompiler

Free online compiler supporting 70+ languages including Java, Python, C++, JavaScript.

Analytics, Events and Statistics

Dwh.dev

Data Cloud Observability Solution (Snowflake). Free for personal use.

Hightouch

Hightouch is a Reverse ETL platform that helps you sync customer data from your data warehouse to your CRM, marketing, and support tools. The free tier offers you one destination to sync data to.

Avo

Simplified analytics release workflow. Single-source-of-truth tracking plan, type-safe analytics tracking library, in-app debuggers, and data observability to catch all data issues before you release. Free for two workspace members and 1 hour data observability lookback.

Branch

Mobile Analytics Platform. Free Tier offers up to 10K Mobile App Users with deep-linking & other services.

Cauldron

Analytics open source solution that allows users to aggregate information from multiple collaboration platforms as different types of data sources (Git, Github, and Gitlab). The free tier includes an unlimited number of reports.

Census

Reverse ETL & Operational Analytics Platform. Sync 10 fields from your data warehouse to 60+ SaaS like Salesforce, Zendesk, or Amplitude.

Clicky

Website Analytics Platform. Free Plan for one website with 3000 views analytics.

Databox

Business Insights & Analytics by combining other analytics & BI platforms. Free Plan offers 3 users, dashboards & data sources. 11M historical data records.

Hitsteps.com

2,000 pageviews per month for 1 website

amplitude.com

1 million monthly events, up to 2 apps

GoatCounter

GoatCounter is an open-source web analytics platform available as a hosted service (free for non-commercial use) or self-hosted app. It aims to offer easy-to-use and meaningful privacy-friendly web analytics as an alternative to Google Analytics or Matomo. The free tier is for non-commercial use and includes unlimited sites, six months of data retention, and 100k pageviews/month.

Google Analytics

Google Analytics

MetricsWave

Privacy-friendly Google Analytics alternative for developers. Free plan allows 20k pageviews per month without credit card.

Expensify

Expense reporting, free personal reporting approval workflow

getinsights.io

Privacy-focused, cookie-free analytics, free for up to 3k events/month.

heap.io

Automatically captures every user action in iOS or web apps. Free for up to 10K monthly sessions.

Hotjar

Website Analytics and Reports . Free Plan allows 2000 pageviews/day. One hundred snapshots/day (max capacity: 300). Three snapshot heatmaps can be stored for 365 days. Unlimited Team Members. Also in App and standalone surveys, feedback widgets with screenshots. Free tier allows creating 3 surveys & 3 feedback widgets and collecting 20 responses per month.

Keen

Custom Analytics for data collection, analysis and visualization. 1,000 events/month free

Yandex.Datalens

Yandex Cloud data visualization and analysis service. The service is provided free of charge. No restrictions on the number of users and requests.

Yandex.Metrica

Unlimited free analytics

Mixpanel

100,000 monthly tracked users, unlimited data history and seats, US or EU data residency

Moesif

API analytics for REST and GraphQL. (Free up to 500,000 API calls/mo)

optimizely.com

A/B Testing solution, free starter plan, one website, 1 iOS, and 1 Android app

Microsoft PowerBI

Business Insights & Analytics by Microsoft. Free Plan offers limited use with 1 Million User licenses.

Row Zero

Blazingly fast, connected spreadsheet. Connect directly to data databases, S3, and APIs. Import, analyze, graph, and share millions of rows instantly. Three free (forever) workbooks.

sematext.com

Free for up to 50 K actions/month, 1-day data retention, unlimited dashboards, users, etc.

Similar Web

Analytics for Web & Mobile Apps. Free Plan offers five results per metric, one month of mobile app data & 3 months of website data.

StatCounter

Website Viewer Analytics. Free plan for analytics of 500 most recent visitors.

Statsig

All-in-one platform spanning across analytics, feature flagging, and A/B testing. Free for up to 1m metered events per month. Also provides unlinited in-App Surveys with 250/month responses.

Tableau Developer Program

Innovate, create, and make Tableau work perfectly for your organization. The free developer program gives a personal development sandbox license for Tableau Online. The version is the latest pre-release version so Data Devs can test each & every feature of this superb platform.

usabilityhub.com

Test designs and mockups on real people and track visitors. Free for one user, unlimited tests

woopra.com

Free user analytics platform for 500K actions, 90-day data retention, 30+ one-click integration.

counter.dev

Web analytics made simple and therefore privacy friendly. Free or pay what you want by donation.

PostHog

Full Product Analytics suite free for up to 1m tracked events per month. Also provides unlinited in-App Surveys with 250/month responses.

Uptrace

Distributed Tracing Tool that helps developers pinpoint failures and find performance bottlenecks. Has a free plan, offers a complimentary Personal subscription for open-source projects, and has an open-source version.

Microsoft Clarity

Clarity is a free, easy-to-use tool that captures how real people use your site.

Beampipe.io

Beampipe is simple, privacy-focussed web analytics. free for up to 5 domains & 10k monthly page views.

Aptabase

Open Source, Privacy-Friendly, and Simple Analytics for Mobile and Desktop Apps. SDKs for Swift, Kotlin, React Native, Flutter, Electron, and many others. Free for up to 20,000 events per month.

Trackingplan

Automatically detect digital analytics, marketing data and pixels issues, maintain up-to-date tracking plans, and foster seamless collaboration. Deploy it to your production environment with real traffic or add analytics coverage to your regression tests without writing code.

LogSpot

Full unified web and product analytics platform, including embeddable analytics widgets and automated robots (slack, telegram, and webhooks). Free plan includes 10,000 events per month.

Umami

Simple, fast, privacy-focused, open-source alternative to Google Analytics.

TrackWith Dicloud

Free lightweight privacy-focused alternative to Google Analytics. Unlimited pageviews, unlimited visitor, unlimited page heatmaps & goal tracking. Free for up to 3 domains and 600 session replay per domain.

AppFit

AppFit is a comprehensive analytics and product management tool designed to facilitate seamless, cross-platform management of analytics and product updates. Free plan includes 10,000 events per month, product journal and weekly insights.

Seline

Seline is a simple & private website and product analytics. Cookieless, lightweight, independent. Free plan includes 3,000 events per month and provides access to all our features, such as the dashboard, user journeys, funnels, and more.

Payment and Billing Integration

Qonversion

All-in-one cross-platform subscription management platform offering analytics, A/B testing, Apple Search Ads, remote configs, and growth tools for optimizing in-app purchases and monetization. Compatible with iOS, Android, React Native, Flutter, Unity, Cordova, Stripe, and web. Free up to $10k in monthly tracked revenue.

ParityVend

Glassfy

Adapty.io

CoinMarketCap

Provides cryptocurrency market data including the latest crypto and fiat currency exchange rates. The free tier offers 10K call credits/month.

CurrencyFreaks

Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.

CoinGecko

Provides cryptocurrency market data including the latest crypto exchange rates and historical data. The demo api comes with a stable rate limit of 30 calls/min and a monthly cap of 10,000 calls.

CurrencyApi

Live Currency Rates for Physical and Cryptocurrencies, delivered in JSON and XML. The free tier offers 1,250 API requests/month.

currencylayer

Reliable Exchange Rates and Currency Conversion for your Business, 100 API requests/month free.

exchangerate-api.com

An easy-to-use currency conversion JSON API. The free tier updates once per day with a limit of 1,500 requests/month.

FraudLabsPRO

Help merchants to prevent payment fraud and chargebacks. Free Micro Plan available with 500 queries/month.

FxRatesAPI

Provides real-time and historical exchange rates. The free tier requires attribution.

Moesif API Monetization

Generate revenue from APIs via usage-based billing. Connect to Stripe, Chargebee, etc. The free tier offers 30,000 events/month.

Nami ML

Complete platform for in-app purchases and subscriptions on iOS and Android, including no-code paywalls, CRM, and analytics. Free for all base features to run an IAP business.

RevenueCat

Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $2.5k/mo in tracked revenue.

vatlayer

Instant VAT number validation and EU VAT rates API, free 100 API requests/month

Currencyapi

Free currency conversion and exchange rate data API. Free 300 requests per month, 10 requests per minute for private use.

Miscellaneous

BackgroundStyler.com

Create aesthetic screenshots of your code, text or images to share on social media.

BinShare.net

Create & share code or binaries. Available to share as a beautiful image e.g. for Twitter / Facebook post or as a link e.g. for chats or forums.

Blynk

A SaaS with API to control, build & evaluate IoT devices. Free Developer Plan with 5 devices, Free Cloud & data storage. Mobile Apps are also available.

Bricks Note Calculator

a note-taking app (PWA) with a powerful built-in multiline calculator.

Carbon.now.sh

create and share code snippets in an aesthetic screenshot-like image format. Usually used to aesthetically share/show off code snippets on Twitter or blog posts.

Code Time

an extension for time-tracking and coding metrics in VS Code, Atom, IntelliJ, Sublime Text, and more.

Codepng

Create excellent snapshots from your source code to share on social media.

CodeToImage

Create screenshots of code or text to share on social media.

Cronhooks

Schedule on-time or recurring webhooks. The free plan allows 5 ad-hoc schedules.

cron-job.org

Online cronjobs service. Unlimited jobs are free of charge.

datelist.io

Online booking / appointment scheduling system. Free up to 5 bookings per month, includes 1 calendar

Domain Forward

A straightforward tool to forward any URL or Domain. Free up to 5 domains and 200k requests per month.

Elementor

WordPress website builder. Free plan available with 40+ Basic Widgets.

Format Express

Instant online format for JSON / XML / SQL.

FOSSA

Scalable, end-to-end management for third-party code, license compliance and vulnerabilities.

Hook Relay

Add webhook support to your app without the hassles: done-for-you queueing, retries with backoff, and logging. The free plan has 100 deliveries per day, 14-day retention, and 3 hook endpoints.

http2.pro

HTTP/2 protocol readiness test and client HTTP/2 support detection API.

kandi

Jumpstart Application Development: build custom functions, and use cases, and complete applications faster through code snippets and open-source library reuse.

Base64 decoder/encoder

Online free tool for decoding & encoding data.

newreleases.io

Receive notifications on email, Slack, Telegram, Discord, and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub.

OnlineExifViewer

View EXIF data online instantly for a photo including GPS location and metadata.

PDFMonkey

Manage PDF templates in a dashboard, call the API with dynamic data, and download your PDF. Offers 300 free documents per month.

Pika Code Screenshots

Create beautiful, customizable screenshots from code snippets and VSCode using the extension.

QuickType.io

Quickly auto-generate models/class/type/interface and serializers from JSON, schema, and GraphQL for working with data quickly & safely in any programming language. Convert JSON into gorgeous, typesafe code in any language.

RandomKeygen

A free mobile-friendly tool that offers a variety of randomly generated keys and passwords you can use to secure any application, service, or device.

ray.so

Create beautiful images of your code snippets.

readme.com

Beautiful documentation made easy, free for Open Source.

redirection.io

SaaS tool for managing HTTP redirections for businesses, marketing and SEO.

redirect.ing

Fast & secure domain forwarding without managing servers or SSL certificates. Free plan includes 10 hostnames and 100,000 requests per month.

redirect.pizza

Easily manage redirects with HTTPS support. The free plan includes 10 sources and 100,000 hits per month.

ReqBin

Post HTTP Requests Online. Popular Request Methods include GET, POST, PUT, DELETE, and HEAD. Supports Headers and Token Authentication. Includes a basic login system for saving your requests.

Smartcar API

An API for cars to locate, get fuel tank, battery levels, odometer, unlock/lock doors, etc.

snappify

Create and edit screen recordings and other videos online.

Webacus

Access a wide range of free developer tools for encoding, decoding, and data manipulation.