Calibre

Calibre is an open-source e-book manager and converter. It organizes large libraries, converts between popular formats (EPUB, MOBI, PDF, AZW3, and more), syncs with e-readers, and includes a built-in reader and editor.

It is especially useful when:

  • You manage a large e-book collection across devices
  • You need reliable conversion between e-book formats
  • You want metadata fetching and cover downloads
  • You prefer an ad-free, open-source tool

Calibre is licensed under the GPLv3 and available for Windows, macOS, and Linux.

Download Options

Platform Type Download
8.8.0 Windows x64 Installer (.msi) Download
8.8.0 Windows x64 Portable Installer (.exe) Download
8.8.0 macOS (Universal) Installer (.dmg) Download

Useful Links