Atomic vs Outline
Comparing two open source alternatives to Notion. Use the comparison below to decide which one fits your needs.
Atomic
MITA self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.
Outline
BSL-1.1The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Side-by-side comparison
| Atomic | Outline | |
|---|---|---|
| License | MIT | BSL-1.1 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 1,955 | 40,632 |
| Forks | 141 | 3,570 |
| Open Issues | 34 | 76 |
| Last Commit | Aug 9, 2026 | Sep 19, 2026 |
| First Released | Nov 25, 2025 | May 22, 2016 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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