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

💯 Curated coding interview preparation materials for busy software engineers

A JS library for predictable global state management

Declarative routing for React

The repository for high quality TypeScript type definitions.

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

React Hooks — 👍

The Select Component for React.js

Dead simple Object schema validation

Playwright MCP server

Selector library for Redux

📄 Create PDF files using React

The API and real-time application framework

🤖 GPU accelerated Neural networks in JavaScript for Browsers and Node.js

A Minimalistic Wrapper for IndexedDB

The complete guide to static typing in "React & Redux" apps using TypeScript

Sandbox for developing and testing UI components in isolation

A simple and reusable datepicker component for React

Simple reusable React error boundary component

⚡ Zero config GUI for Jest

CSS media queries in react - for responsive design, and more.

IndexedDB, but with promises

React components for Chart.js, the most popular charting library

200 bytes to never think about React state management libraries ever again

Browser API's turned into declarative React components and HoC's

A memoization library which only remembers the latest invocation

A set of interactive TypeScript exercises

Your One-Stop solution for a full-stack universal Redux App!

Morphing Ui transitions made simple

🌊 Pretty, common and useful algorithms with modern JS and beautiful tests