Best Open-Source Notion Alternatives on GitHub (2026)
This list contains the top 7 open-source notion alternatives on GitHub, ranked by the RepoRadar scoring engine across five quality dimensions. The top-ranked repo is AppFlowy-IO/AppFlowy with 72.6k stars. Projects span written in Dart, TypeScript, Python, Rust. Data last updated 2026-06-19.
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source N…
Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI …
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source N…
🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.
★15.4k⑂ 1,400⚠ 302TypeScriptupdated 7 months ago
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Frequently Asked Questions
What is the best open-source notion alternatives on GitHub?
Based on the RepoRadar scoring engine, AppFlowy-IO/AppFlowy is currently the top-ranked option with 72.6k stars and a score of 91/100.
How are open-source notion alternatives repositories ranked?
Repositories are ranked by the RepoRadar score — a composite of five dimensions: Popularity (35%), Freshness (25%), Maintenance (20%), Community (10%), and Completeness (10%). Scores range from 0–100.
When was this list last updated?
This list was last updated on 2026-06-19. Data is sourced directly from GitHub's public API. No cached or fabricated repositories are used.