Atomic vs Colanode

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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Colanode

Apache-2.0

Open source, local-first Slack and Notion alternative that puts you in control of your data with offline support and end-to-end encryption.

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Side-by-side comparison

	Atomic	Colanode
License	MIT	Apache-2.0
Self-hostable	Yes	Yes
GitHub Stars	1,558	4,923
Forks	105	308
Open Issues	32	45
Last Commit	Jun 21, 2026	Apr 3, 2026
First Released	Nov 25, 2025	Jul 29, 2024
Categories	Note Taking & Knowledge Management Tools	PDF viewer Team Chat & Messaging Tools
Tags	#note taking #markdown #knowledge-management #LLM #local ai	—

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