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

web development for the rest of us

A fancy self-hosted monitoring tool

The HTML Presentation Framework

JavaScript animation engine

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Welcome to a calmer internet

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

Client-side JavaScript PDF generation for everyone.

An AI-powered task-management system you can drop into Cursor, Lovable, Windsurf, Roo, and others.

SVG icons for popular brands

A set of free MIT-licensed high-quality SVG icons for UI development.

Versatile typeface for code, from code.

web development, streamlined

A Git-based CMS for Static Site Generators

MJML: the only framework that makes responsive-email easy

📊 Interactive JavaScript Charts built on SVG

Next-generation full-text search library for Browser and Node.js

List of functions which you can use to replace moment.js + ESLint Plugin

The official repository of Mozilla's Firefox web browser.

A standalone version of the readability lib

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).

System monitoring dashboard for terminal

The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use …

Digital Mind Extension

An absurdly small jQuery alternative for modern browsers.

Tower defense game that teaches cloud architecture. Build infrastructure, survive traffic, learn scaling.

A dedicated scratchpad for power users

Coolest Gradient Hues and Swatches