collaborative

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

Etherpad: A modern really-real-time collaborative document editor.

Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React.

The most complete open-source travel planner: real-time collaboration, bookings, budgets, packing lists, journals, offline PWA, SSO and an AI-ready MCP server, with planet-wide place search and routing built in.