Etherpad

Etherpad is a highly customizable open source online editor.

Etherpad is the ultimate real-time, open-source text editor for collaborative writing. It’s like a live, multiplayer notepad where you and your team can edit documents together—no more emailing files back and forth.

Etherpad is highly customizable with plugins, supports multiple languages, and can be self-hosted. It’s perfect for brainstorming, drafting, or coding together in real time. Plus, it’s free, open-source, and used by millions worldwide.