Burrow

Burrow is a browser-based development environment that runs entirely client-side. It includes Bun's actual Rust transpiler compiled to WebAssembly, a bash-like shell, git support, npm package management, and a local AI coding agent powered by your GPU via WebGPU. No backend or remote sandbox—everything executes in your tab and persists to IndexedDB.

Designed for developers who want a self-contained workspace, Burrow lets you run TypeScript files, preview live servers, install packages, clone repositories, and ask an AI agent to read, edit, and execute commands. The project describes itself as an open-source alternative to WebContainers. According to the source, it was built using Claude for code assistance.