A Node.js style checker and lint tool for Markdown/CommonMark files.

Production-grade engineering skills for AI coding agents.

Browser automation CLI for AI agents

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system dr…

`eslint-plugin-import-x` is a fork of `eslint-plugin-import` that aims to provide a more performant and more lightweight version of the original plugin.

Static checker for GitHub Actions workflow files

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

More than 300 powerful ESLint rules

❤️ JavaScript/TypeScript linter (ESLint wrapper) with great defaults

TypeScript Remove (tsr) is a utility that removes unused code from TypeScript projects – It's like tree shaking, but for source files

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

Lottie animations in React: one component for the easy path, the whole engine when you need control.

A lightweight carousel library with fluid motion and great swipe precision.

👨‍🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.

dev tools, env vars, task runner

DOM-first, headless carousel for React

書籍『［作って学ぶ］ブラウザのしくみ──HTTP、HTML、CSS、JavaScriptの裏側』で解説されているソースコードです。

Vercel's engineering style guide

⚡️ TypeScript Execute | The easiest way to run TypeScript in Node.js

State machines, statecharts, and actors for complex logic

OpenAPI based HTTP Client code generator

Radix Themes is an open-source component library optimized for fast development, easy maintenance, and accessibility. Maintained by @workos.

Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.

Super-fast/easy runtime validators and serializers via transformation

node.js command-line interfaces made easy

A fully featured React components library

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

Loads environment variables from .env for nodejs projects.

Translate standard UUIDs into shorter formats and back.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.