Atomic vs Mnemo

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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Mnemo

Apache-2.0

Mnemo is a free, open-source desktop study app combining block-based notes, FSRS flashcards, and mind maps with no accounts or tracking.

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Side-by-side comparison

	Atomic	Mnemo
License	MIT	Apache-2.0
Self-hostable	Yes	No
GitHub Stars	1,973	95
Forks	143	9
Open Issues	36	7
Last Commit	Sep 29, 2026	Oct 9, 2026
First Released	Nov 25, 2025	Jul 30, 2025
Categories	Note Taking & Knowledge Management Tools	Study & Flashcard Tools Note Taking & Knowledge Management Tools Mind Mapping
Tags	#note taking #markdown #knowledge-management #LLM #local ai	#flashcards #spaced-repetition #notes #knowledge-management #local-first

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