calibre

Calibre is an open source e-book library management application that enables you to manage your e-book collection, convert e-books between different formats, synchronize with popular e-book reader devices, and read your e-books with the included viewer.

It acts as an e-library and also allows for format conversion, news feeds to e-book conversion, as well as e-book reader sync features and an integrated e-book viewer.

Calibre's features include: library management; format conversion (all major ebook formats); syncing to e-book reader devices; fetching news from the Web and converting it into ebook form; viewing many different e-book formats, giving you access to your book collection over the internet using just a browser.

Calibre 5.31 new features:

  • Kindle driver: Support the new Kindle PaperWhite 2021. Closes tickets: 1948883

  • Add an option under Preferences->Behavior to have calibre recognize numbers when sorting (this was previously under Preferences->Tweaks)

  • E-book viewer: Add a button to directly open the viewer help section in the calibre user manual to the viewer controls

  • E-book viewer: Prevent the display from sleeping when using auto-scroll or read aloud modes (Implemented only on Windows and macOS)

  • Edit book: Set semantics tool: Add support for EPUB 3 landmarks

  • Add an entry to the Connect/share menu to open the content server in a local browser when it is running. Closes tickets: 1948493

Bug fixes

  • Content server: Fix some OPDS feeds failing with non-ASCII content. Closes tickets: 1947879

  • Tag browser: Fix incorrect first letter partitioning when enabling numeric collation of items that start with a number. Closes tickets: 1948560

v5.31.1 fixes

  • a bug in an HTML serialization library calibre uses that broke a few things, such as the comments editor tool in the metadata dialog. Closes tickets: 1949167

Download: Calibre 5.31.1 for Windows | Portable | Windows 64-bit | ~100.0 MB (Open Source)
Download: Calibre 5.31.1 for MacOS | 144.0 MB
Download: Calibre 5.31.1 for Linux
View: Calibre Home Page | Calibre Screenshot