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 9.1.0:

New features:

• This is a pure bugfix release fixing various regressions in calibre 9.0

Bug fixes:

• macOS: Fix crash when pasting cover image
• Fix restore database not working
• Windows: Fix the Read Aloud feature in the E-book viewer not working when using the Piper engine
• Fix using icon themes in "For dark and light" mode not working
• Fix covers in the Cover grid slightly stretched on high DPI screens
• Amazon metadata download: Fix publication date not being retrieved form amazon.co.jp

Improved news sources:

• Economist

Screenshots:

• 
• 
•