What is Obsidian?

Obsidian is a knowledge base that works on local Markdown files, so your notes stay on your device and remain readable forever. Its bidirectional links and graph view turn scattered notes into a connected second brain, and 3,000+ community plugins extend it into almost anything. Free for personal use, with optional paid sync.

obsidian.mdVisit

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   Logseq

   A privacy-first, open-source platform for knowledge management
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   Joplin

   Open source note taking with end-to-end encryption
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   Anytype

   The everything app for those who celebrate trust and autonomy
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   Notion

   Notes, docs, wikis, projects — all in one workspace

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