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CapacitiesObsidian
Freemium

Free tier available, with paid plans for additional features.

 Free

Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…

Windows, macOS, Linux, Android, iOS, Browser extension Windows, macOS, Linux, Android, iOS, Browser extension
  • Object and type based structure is a distinct alternative to folder or file hierarchies
  • Native apps across desktop and mobile platforms
  • Notes are plain Markdown files in a folder you control, readable without the app
  • Linking, backlinks, tags, graph view and fast search across the vault
  • Advanced features are gated behind a paid tier
  • Object-based model has a learning curve versus traditional folder notes
  • The application is not open source, only the plugin ecosystem and the releases repository
  • Syncing between devices means paying for Obsidian Sync or wiring up your own sync tool
Downloadable app, Browser extension Downloadable app, Browser extension
Closed source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.