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Obsidian
Local-first markdown knowledge base with bidirectional links and graph view
Visit Obsidian
https://obsidian.md
About Obsidian
Obsidian is a powerful knowledge base and note-taking app that works on top of a local folder of Markdown files. Known for its bidirectional linking and graph view, it helps users build a 'second brain' by connecting ideas visually. With 1,700+ community plugins and zero vendor lock-in (local files), Obsidian has become the gold standard for personal knowledge management among power users.
Key Features
Obsidian Pros & Cons
✅ Pros
- +Complete data ownership — files stay local in plain Markdown
- +Unmatched plugin ecosystem (1,700+ plugins)
- +Bidirectional linking reveals hidden connections
- +Lightning fast even with thousands of notes
- +Free for personal use — best-in-class value
⚠️ Cons
- −Steep learning curve for non-technical users
- −No built-in team collaboration (individual-first tool)
- −Sync requires paid Obsidian Sync or third-party solution
- −AI features require plugins (not native)
Who Is Obsidian Best For?
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Alternatives to Obsidian
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