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

Promise based HTTP client for the browser and node.js

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

Prettier is an opinionated code formatter.

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

⚡ 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 browser based code editor

A tool for writing better scripts

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

Git hooks made easy 🐶 woof!

A set of best practices for JavaScript projects

node.js command-line interfaces made easy

Next-generation ES module bundler

A window.fetch JavaScript polyfill.

🏊🏾 Simplified HTTP request client.

💌 An extensible desktop mail app built on the modern web. Forks welcome!

A logger for just about everything.

Package your Node.js project into an executable

Simple, unobtrusive authentication for Node.js.

Realtime MVC Framework for Node.js

📝 Minimalistic Vue-powered static site generator

Simple to use, blazing fast and thoroughly tested WebSocket client and server for Node.js

Node.js test runner that lets you develop with confidence 🚀

Markdown for the component era

1kB-ish JavaScript framework for building hypertext applications

Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.

⏱ A library for working with dates and times in JS

🙈 Volkswagen detects when your tests are being run in a CI server, and makes them pass.

📊 Interactive JavaScript Charts built on SVG

A bidirectional Markdown to HTML to Markdown converter written in Javascript