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Notable vs Zettlr: catalog facts
Notable	Zettlr
Free Free to use as freeware.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows	Windows, macOS, Linux
Notes kept as plain GitHub Flavored Markdown Nestable tags and attachments	Combines document navigation with flexible export workflows.
Source code of current versions is not published Development has slowed, with infrequent updates	Some publication formats require additional export dependencies.
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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