AppFlowy vs Atomic

Comparing two open source alternatives to Notion. Use the comparison below to decide which one fits your needs.

AppFlowy

AGPL-3.0

Open source Notion alternative that brings projects, wikis, and teams together with AI while keeping you in control of your data.

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Atomic

MIT

A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.

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Side-by-side comparison

	AppFlowy	Atomic
License	AGPL-3.0	MIT
Self-hostable	Yes	Yes
GitHub Stars	76,857	1,955
Forks	6,026	141
Open Issues	1,029	34
Last Commit	Sep 19, 2026	Aug 9, 2026
First Released	Jun 16, 2021	Nov 25, 2025
Categories	PDF viewer	Note Taking & Knowledge Management Tools
Tags	—	#note taking #markdown #knowledge-management #LLM #local ai

GitHub stars over time

AppFlowy76,857

Atomic

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