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TiddlyWikiTriliumNext Notes
Free

Free and open source.

 Free

Free and open source under the AGPL 3.0.

Web Windows, macOS, Linux, Web, Self-hosted
  • Whole notebook is one portable HTML file
  • Non-linear notes that can be tagged and linked
  • Cloning puts one note in several places without copying it
  • Rich text, code notes, canvases, Mermaid diagrams and relation maps
  • Saving a single-file wiki from a browser can need extra setup
  • The tiddler model takes time to learn
  • Notes live in a database, not plain files, so lock-in is real
  • The interface is dense and takes a while to get comfortable with
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.