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Open-source alternatives to Notion

9 open-source projects on GitHub that describe themselves as an alternative to Notion: AppFlowy, platform, focalboard. Compare stars, license and activity, or see Notion on Sealbook.

RepositoryStarsLanguageLicenseActivity
1AppFlowy-IO/AppFlowyBring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control ★ 77.5kDartAGPL-3.0Active
2hcengineering/platformHuly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)★ 27.9kTypeScriptEPL-2.0Active
3mattermost-community/focalboardFocalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.★ 26.5kTypeScriptOtherSlowing
4docmost/docmostDocmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.★ 22kTypeScriptAGPL-3.0Active
5AgriciDaniel/claude-obsidianSelf-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowled★ 15.6kPythonMITActive
6colanode/colanodeOpen-source and local-first Slack and Notion alternative that puts you in control of your data★ 5.2kTypeScriptApache-2.0Slowing
7Smaug6739/Alexandrie📚 The open-source, offline-first Notion, Obsidian & Confluence alternative. Advanced Markdown, multi-tenant teams, OIDC/SSO, and local S3 ba★ 2.9kVueMITActive
8AppFlowy-IO/AppFlowy-CloudBring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control ★ 2kRustAGPL-3.0Archived
9anc95/writely❤️‍🔥 A chrome extension as an alternative to Notion AI that goes beyond Notion AI. | 一个替代 Notion AI 的浏览器插件，不止于 Notion AI★ 1.3kTypeScriptMITStale