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crqt-ngFoliate
Free

Free and open source under the GNU GPL version 2 or later.

 Free

Free and open source, with no paid edition.

Linux Linux
  • Supports a broad range of ebook formats
  • Can open books from ZIP archives
  • Opens EPUB, Mobipocket, Kindle, FB2, CBZ and PDF
  • Annotations and progress are plain JSON files you can sync however you want
  • DRM-protected EPUB and MOBI are not supported
  • Linux only; there is no Windows or macOS build
  • Needs recent GTK4, libadwaita and WebKitGTK, which older distributions may not have
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0-or-later License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 8, 2026

Checked September 20, 2026

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