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TiddlyWikiSiYuan
Free

Free and open source.

 Freemium

Most features are free, including for commercial use. The official cloud sync and assets…

Web Windows, macOS, Linux, Android, iOS, Self-hosted
  • Whole notebook is one portable HTML file
  • Non-linear notes that can be tagged and linked
  • Block-level references and two-way links with custom attributes
  • SQL queries embedded inside notes for building your own views
  • Saving a single-file wiki from a browser can need extra setup
  • The tiddler model takes time to learn
  • Notes live in the app's own store rather than plain files in a folder
  • The interface has a lot of concepts to learn at once
Downloadable app, Web application Downloadable app, Self-hosted
Open source Open source
License not stated License: AGPL-3.0
No account needed No account needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked September 21, 2026

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