Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital librarian.

Manage, convert, sync, and more

• Library management. Calibre keeps things orderly by creating single entries for books that contains multiple formats. Add tags and comments for better searchability.
• Format conversion. Calibre's robust conversion options support a wide variety of file formats.
• File syncing. Calibre's device drivers seamlessly support all the top e-readers and devices.

What's New:

Version 8.3.0:

New Features

• Cover grid: Allow configuring different backgrounds for light and dark mode in Preferences->Look & feel->Cover grid
• E-book viewer: Further speedup first open of large EPUB files by another 30%
• Metadata review dialog: Add merge comments action

Bug Fixes

• Kobo driver: Fix viewing of KEPUB files from the device view in calibre not working
• Fix a regression in 8.1 that broke displaying of the debug log when running in debug mode
• E-book viewer: Fix a regression in 8.0 that caused the clock to display an extra p after the time

Screenshots:

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