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LibrumReadest
Free

Free and open source.

 Freemium

The app is free and open source under the AGPL. The optional cloud sync service has paid…

Windows, macOS, Linux Windows, macOS, Linux, Android, Web, iOS
  • Reader and library manager in one app
  • Runs on several desktop platforms
  • Reads EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one app
  • The same reader on macOS, Windows, Linux, Android, iOS and the web
  • Sync depends on the project's service
  • Smaller project than established readers like Calibre
  • Cloud sync is a hosted service with paid tiers, not purely local
  • A young project, so features and stability are still moving
Downloadable app Downloadable app, Web application
Open source Open source
License: GPL-3.0 License: AGPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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