freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

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

Visual Studio Code

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

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

JavaScript API for Chrome and Firefox

A utility-first CSS framework for rapid UI development.

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

The ultimate space for work and life — to find, build, and collaborate with agent teammates that grow with you. We are taking agent harness to the next level — enabling multi-agent collaboration, e…

Easy to maintain open source documentation websites.

Realtime application framework (Node.JS server)

A JS library for predictable global state management

🐻 Bear necessities for state management in React

Declarative routing for React

The repository for high quality TypeScript type definitions.

Fast, easy and reliable testing for anything that runs in a browser.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

Collection of TypeScript type challenges with online judge

Delightful JavaScript Testing.

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

📋 React Hooks for form state management and validation (Web + React Native)

React Hooks — 👍

TypeScript-first schema validation with static type inference

Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅

Chakra UI is a component system for building SaaS products with speed ⚡️

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

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

⏳ Modern JavaScript date utility library ⌛️

Make any web page a desktop application