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

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

Next generation frontend tooling. It's fast!

Declarative routing for React

Build like a team of hundreds_

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

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

Build forms in React, without the tears 😭

🛡️ ⚛️ A simple, scalable, and powerful architecture for building production ready React applications.

A modern animation library for React and JavaScript

🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table

Bootstrap components built with React

Full-sized drag & drop event calendar in JavaScript

Scan for React performance issues and eliminate slow renders in your app

The Bluesky Social application for Web, iOS, and Android

Rich-text editor with AI, MCP, and shadcn/ui

⚪ SVG-Powered component to easily create skeleton loadings.

Highcharts JS, the JavaScript charting framework

The React documentation website

A design system built by IBM

Personal blog by Dan Abramov.

The Accessible Foundation for React Apps and Design Systems

A tool to help migrate JavaScript code quickly and conveniently to TypeScript

React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport.

🐏 Simple and complete React hooks testing utilities that encourage good testing practices.

Cucumber for JavaScript

Typescript/React Library for AI Chat💬🚀

A utility library for JavaScript and TypeScript.

Web. Components. 😂

A real browser preview inside your editor that you can debug.