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TangentSilverBullet
Free

Free and open source under the Apache 2.0 licence.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Windows, macOS, Linux Self-hosted, Web
  • Notes are plain Markdown files on your own disk
  • Sliding panels and a branching map for following linked notes
  • Combines live previews with queries and programmable extensions.
  • No built-in sync or mobile app mentioned
  • Smaller community than Obsidian or Logseq
  • Requires running and maintaining your own instance.
Downloadable app Self-hosted
Open source Open source
License: Apache-2.0 License: MIT
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked September 22, 2026

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