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Obsidian

Local-first personal knowledge management

★★★★☆ 4.5Free (sync from $5/mo)
Quick verdict

Obsidian stores your notes as plain markdown files on your own device. It's the top choice for privacy-conscious individuals building a personal knowledge base.

Pros
  • ✓Local-first, owns your data
  • ✓Plain markdown files
  • ✓Powerful plugin ecosystem
  • ✓Bidirectional links
Cons
  • ✗No native collaboration
  • ✗Sync costs extra
  • ✗Steeper learning curve
  • ✗Not great for project management
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Notion
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