Rustpad

Rustpad is a minimal open-source collaborative code editor for real-time writing in the browser. It uses operational transformation so multiple users can edit the same document at the same time without overwriting each other. The server is written in Rust, while the front end uses TypeScript, React, WebAssembly, and the Monaco editor. Rustpad is designed to be self-hosted and can run without a database by keeping documents in memory. It also supports optional SQLite persistence for retaining document contents across restarts. The project is especially useful for lightweight pair programming, collaborative note-taking, interviews, teaching, and temporary shared editing sessions.