Open source alternatives to Confluence
4 free tools that do the job of Confluence, most stars first. All are web apps you can run on your own server.
4 alternatives
Sorted by most stars.-
Outline
A fast, collaborative wiki and knowledge base for teams.
Also an alternative to Notion
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Wiki.js
A modern wiki engine on Node.js, with Markdown and visual editors.
Web app
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Docmost
A collaborative wiki and documentation tool for teams.
Also an alternative to Notion
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BookStack
A simple, self-hosted platform for organising information as books, chapters and pages.
Web app
More alternatives in Notes and wikis
All Notes and wikis tools
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Ask us to add itAbout these numbers. Stars, dates and licenses come from GitHub through ecosyste.ms, collected on 10 Nov 2026; they can lag GitHub by a few days. A project is listed only if it has 300 or more stars, was updated in the last 12 months and states a license. A listing is not an endorsement, and we have not tested these tools on Antideploy yet. Logos belong to their projects and companies and are shown only to say which is which.