Top Open Source Collaborative Notes & Wikis Tools in 2026
A curated collection of the 9 best free and open-source Collaborative Notes & Wikis tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.
XWiki
Open source enterprise wiki and knowledge base
Stars1,302Last commit10d agoLicenseLGPL-2.1
Outline
Modern team knowledge base & wiki
Stars40,349Last commit13d agoLicenseOpen Source
Vrite
Open-source developer content platform
Stars1,994Last commit11d agoLicenseOpen Source
Tolaria
A second brain for the AI era
Stars19,596Last commit10d agoLicenseAGPL-3.0
Orgnise
All-in-one workspace for team docs and projects
Stars247Last commit13mo agoLicenseAGPL-3.0
Macro Docs
Collaborative markdown docs with AI agents
Stars4,064Last commit11d agoLicenseAGPL-3.0Docmost
Enterprise-ready on-premise wiki for teams
Stars21,482Last commit10d agoLicenseAGPL-3.0AppFlowy
Self-hosted AI workspace for teams
Stars75,997Last commit2mo agoLicenseAGPL-3.0
Affine
Open-source Notion & Miro alternative with docs, whiteboards, databases, and AI in one local-first workspace
Stars71,941Last commit10d agoLicenseOpen Source
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Showing 9 of 9 open-source tools