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RedNotebook vs Zim: catalog facts
RedNotebook	Zim
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source.
Windows, Linux	Windows, Linux
Supports tags, templates, images and document exports.	Notes stored as plain text files you can edit elsewhere Pages created simply by linking to them
It is a local journal rather than a collaborative workspace.	Uses its own wiki markup rather than Markdown Desktop only, with no built-in sync or mobile app
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
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 23, 2026

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