Atomic vs Wiki.js

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

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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Wiki.js

AGPL-3.0

Wiki.js is a modern, powerful open-source wiki app built on Node.js. Versioned, searchable, beautiful, and self-hosted — a knowledge base for any team, big or small.

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Side-by-side comparison

	Atomic	Wiki.js
License	MIT	AGPL-3.0
Self-hostable	Yes	No
GitHub Stars	1,965	28,959
Forks	141	3,318
Open Issues	34	181
Last Commit	Aug 9, 2026	Sep 23, 2026
First Released	Nov 25, 2025	Aug 16, 2016
Categories	Note Taking & Knowledge Management Tools	Wiki Software Internal Knowledge Base Knowledge Management Tools
Tags	#note taking #markdown #knowledge-management #LLM #local ai	#markdown #documentation #wiki

GitHub stars over time

Atomic1,965

Wiki.js

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