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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 more...

What's New

Version 2.43.0:
New Features
  • Edit Book: Add a 'Smart Comment' tool to easily comment/uncomment text
  • Press Ctrl+` to trigger the tool, or add the tool to your toolbar via Preferences->Toolbar->Tools for all editors. It will either insert comments around the selected text or uncomment an existing comment if the cursor is inside one.
  • Tag mapper: Add new rule types to more...


  • OS X 10.7.2 or later

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4 307


Current Version (2.x)


Downloads 959,650
Version Downloads 4,039
License Free
Date 12 Nov 2015
Platform Intel 64 / OS X
Price Free
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