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 4.19.0:
New features

• Manage authors dialog: Improve performance in very large libraries

Bug fixes

• Book details panel: Fix a regression that caused right clicking on an author name to manage it not opening with that name selected.
• calibredb set_metadаta: When converting a string into a datetime if the string is a full ISO 8601 date with timezone do not adjust the date to make it timezone neutral.
• Edit book: Fix Check book spuriously reporting incorrect mime type warnings for fonts after upgrading a book from EPUB 2 to EPUB 3.
• Book details panel: Dont show sizes less than 0.01MB as zero.
• Viewer: Fix jump to previous section not working when viewer is on last section

Improved news sources

• Journal of Accountancy
• Bangkok Post
• 20 minutes

Screenshots:

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