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Zettlr vs Notenik: catalog facts
Zettlr	Notenik
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free with no in-app purchases, subscriptions or ads; source code under the MIT license.
Windows, macOS, Linux	macOS
Combines document navigation with flexible export workflows.	Notes stored as plain text files you can open anywhere Wiki-style links between notes
Some publication formats require additional export dependencies.	Mac only Sync depends on a third-party service you set up yourself
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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