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Foliate vs crqt-ng: catalog facts
Foliate	crqt-ng
Free Free and open source, with no paid edition.	Free Free and open source under the GNU GPL version 2 or later.
Linux	Linux
Opens EPUB, Mobipocket, Kindle, FB2, CBZ and PDF Annotations and progress are plain JSON files you can sync however you want	Supports a broad range of ebook formats Can open books from ZIP archives
Linux only; there is no Windows or macOS build Needs recent GTK4, libadwaita and WebKitGTK, which older distributions may not have	DRM-protected EPUB and MOBI are not supported
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0-or-later
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 8, 2026

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