Etherpad

Self-hosted office suite with real-time collaboration.

CryptPad is an end-to-end encrypted, zero-knowledge collaborative office suite. Write, edit, and share documents, sheets, and code with confidence that servers never read them.

Real-time collaborative markdown note editor you can self-host — write together with rich formatting and seamless sharing.

A powerful free and open source office suite with word processing, spreadsheets, presentations, and more.

Open-source Word-style word processor in pure Rust — ribbon, styles, tables, track changes and mail merge.

Collabora Online is a powerful open-source office suite built on LibreOffice. Edit documents, sheets, and slides together in self-hosted environments with full file compatibility.