CSS Object Model implemented in pure JavaScript. Also, a CSS parser.

Get a parallel build of Claude code that unlocks feature-flagged capabilities like swarm mode.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

GUI for Anthropic's Bloom - evaluate any behavior immediately  🌸🌱

ansi escape sequences concealed, but highlighted as specified (conceal)

Codespaces template for creating and deploying your own PyScript portfolio

Wasm SpecTec specification tools

JS port and JS/WASM bindings for openai/tiktoken

Web standard IO APIs implemented for nodejs

An extremely fast JavaScript bundler and minifier

A customizable GraphQL Spec compliant Executor

WebAssembly support for the Swift programming language

Benchmarks for different Node.js GraphQL Servers

Create beautiful diagrams just by typing mathematical notation in plain text.

A simpler open-source version of JavaScript deobfuscator JSNice

fasttag part of speech tagger javascript implementation

💣 A lightweight 3D physics engine written in JavaScript.

Markua spec, with in-progress reference implementations in C and JavaScript

Node wrapper for JSON-encoded WebSockets as Streams

etch

Extensionizr! Create a chrome extension in 15 seconds!