Open Source Alternatives
Wiki and documentation platform by Atlassian.
Confluence is a trademark of its respective owner.
Updated Apr 2026
Ranked by Discovery Score
A platform to create documentation/wiki content built with PHP & Laravel
BookStack organizes documentation into a hierarchy that actually makes sense: shelves hold books, books hold chapters, chapters hold pages. It is a wiki built for people who think in structure, not chaos.
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.
Outline is a team wiki built on React and Node.js that actually feels like a modern writing tool. Real-time collaboration, slash commands, markdown support, nested collections, and deep integrations with Slack, Figma, and 20+ other services.
Confluence is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.
Including when one of these alternatives ships a major update. Free.