Best Free Collaboration Software

Open-source, self-hosted alternative to Trello, Asana, and Notion

Open source password manager for teams

Open-source project management for small teams and freelancers

Create, script, and publish Roblox games for free

Open source project management that works for you, not against you

A simple and intelligent task management app to help you plan your day.

Documenting architectural decisions for better software development

Open-source collaborative wiki and documentation software

Copy/paste anything over the network.

Create project documentation with Markdown

Open-source team chat organized around topic threads

Open-source no-code database and spreadsheet-database hybrid

Infinite-canvas whiteboard with a hand‑drawn sketch feel

A collaborative, markdown‑based knowledge base for growing teams

Watch and stream games instantly from your desktop

All-in-one open-source whiteboard tool

Free and open source project management software

A virtual collaborative whiteboard for drawing and brainstorming

A secure password manager for teams

A glossy Matrix collaboration client for the web

Open-source Document Lifecycle Management platform

A painless self‑hosted Git service for teams

Open-source Airtable alternative for collaborative databases

Free, peer-to-peer messaging and calling app with no servers and no personal data required.