A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.

Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

Property based testing framework for JavaScript (like QuickCheck) written in TypeScript

🍺 Scaffolding your Chrome extension! Boilerplates: react \ vue \ svelte \ solid \ preact \ alpine \ lit \ stencil \ inferno \ vanilla

Optimizing compiler for React

CFSSL: Cloudflare's PKI and TLS toolkit

Create beautiful applications using Go

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

A React Rich Text Editor that's block-based (Notion style) and extensible. Built on top of Prosemirror and Tiptap.

Notion-style WYSIWYG editor with AI-powered autocompletion.

🏋️ Find out the cost of adding a new frontend dependency to your project

It's online. It's offline. It's a Service Worker!

Enlightened library to convert HTML and CSS to SVG

Speedy TypeScript type checker

Drag-n-Drop Email Editor Component for React.js

A framework for finding JavaScript memory leaks and analyzing heap snapshots

A collection of TypeScript/JavaScript packages to build high-quality web services.

함수형 자바스크립트 프로그래밍 | 도서출판 인사이트

UAParser.js - The Essential Web Development Tool for User-Agent Detection. Detect Browsers, OS, Devices, Bots, Apps, AI Crawlers, and more. Run in Browser (client-side) or Node.js (server-side).

Testing Library Extension for Chrome DevTools Recorder

Preview UI components in your IDE instantly

Implementation examples of module federation , by the creators of module federation

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

Trigger an action on an element with a keyboard shortcut.

simple image slider component for react

Clean Code concepts adapted for TypeScript

The instant on-demand atomic CSS engine.

Isolated React component development environment with a living style guide

Example Firefox add-ons created using the WebExtensions API