freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Visual Studio Code

💯 Curated coding interview preparation materials for busy software engineers

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

An enterprise-class UI design language and React UI library

Virtual whiteboard for sketching hand-drawn like diagrams

The open source Firebase alternative. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Next generation frontend tooling. It's fast!

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable and developer-first.

A terminal for a more modern age

Easy to maintain open source documentation websites.

Declarative routing for React

🐻 Bear necessities for state management in React

Delightful JavaScript Testing.

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

Your backend, minus the hassle.

A terminal built on web technologies

🐠 Babel is a compiler for writing next generation JavaScript.

Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

A reactive programming library for JavaScript

React Hooks for Data Fetching

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML, CSV and more, into interactive graphs.

✌️ A spring physics based React animation library

Simple, scalable state management.

🇨🇭 A React renderer for Three.js

IDE-style autocomplete for your existing terminal & shell

Nodejs extension host for vim & neovim, load extensions like VSCode and host language servers.

Authentication for the Web.

Redefined chart library built with React and D3