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ObsidianNoteDiscovery
Free

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

 Free

Free and open source under the MIT license.

Windows, macOS, Linux, Android, iOS, Browser extension Web, Self-hosted
  • 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
  • Keeps notes in plain Markdown files
  • Includes search, wikilinks, and graph browsing
  • 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
  • Designed to run on a server you provide
Downloadable app, Browser extension Web application, Self-hosted
Closed source Open source
License not stated License: MIT
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked October 8, 2026

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