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

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Next generation frontend tooling. It's fast!

Declarative routing for React

The repository for high quality TypeScript type definitions.

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

whiteboard / infinite canvas SDK

Open-Source Notification Platform. Embeddable Notification Center, E-mail, Push and Slack Integrations.

An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

Presentation Slides for Developers

Screenshots with JavaScript

Fast, disk space efficient package manager

A completely customizable framework for building rich text editors. (Currently in beta.)

The open source frontend for GitBook doc sites

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely cust…

🎥 Make videos programmatically with React

Mobile-first, accessible components for React Native & Web to build consistent UI across Android, iOS and Web.

Eclipse Theia is a cloud & desktop IDE framework implemented in TypeScript.

A reference implementation of GraphQL for JavaScript

📓 Lint commit messages

The fastest way to develop full-stack web apps with React & Node.js.

🔵 Make TypeScript errors prettier and human-readable in VSCode 🎀

The developer platform for on-demand cloud development environments to create software faster and more securely.

🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!

🧩 The Browser Extension Framework

A beautiful yet powerful syntax highlighter

Performant financial charts built with HTML5 canvas

Session replay and product analytics you can self-host. Ideal for reproducing issues, co-browsing with users and optimizing your product.