Atomic vs Puppyone

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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Puppyone

Apache-2.0

Open source local-first editor for Markdown, docs, rich files, and AI agents — with built-in terminal and Git review.

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Side-by-side comparison

	Atomic	Puppyone
License	MIT	Apache-2.0
Self-hostable	Yes	Yes
GitHub Stars	1,953	743
Forks	141	73
Open Issues	34	8
Last Commit	Aug 9, 2026	Sep 12, 2026
First Released	Nov 25, 2025	Jun 29, 2026
Categories	Note Taking & Knowledge Management Tools	Note Taking & Knowledge Management Tools
Tags	#note taking #markdown #knowledge-management #LLM #local ai	#note taking #notes #local-first #agents

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