The library for web and native user interfaces.

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

JavaScript Style Guide

The React Framework

Node.js JavaScript runtime ✨🐢🚀✨

JavaScript 3D Library.

Promise based HTTP client for the browser and node.js

Set up a modern web app by running one command.

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

web development for the rest of us

The iconic SVG, font, and CSS toolkit

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

The HTML Presentation Framework

Fast, unopinionated, minimalist web framework for node.

JavaScript animation engine

jQuery JavaScript Library

A professional front-end template for building fast, robust, and adaptable web apps or sites.

Based on a true story

Parse, validate, manipulate, and display dates in javascript.

⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services.

A tool for writing better scripts

The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry

Materialize, a CSS Framework based on Material Design

⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.

Pure Javascript OCR for more than 100 Languages 📖🎉🖥

🤪 A list of funny and tricky JavaScript examples

✂️ Modern copy to clipboard. No Flash. Just 3kb gzipped 📋

A toolkit to automate & enhance your workflow

High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.

Automated auditing, performance metrics, and best practices for the web.