It has a cornucopia of features divided into the following main categories:

  • Library Management
  • E-book conversion
  • Syncing to e-book reader devices
  • Downloading news from the web and converting it into e-book form
  • Comprehensive e-book viewer
  • Content server for online access to your book collection

What's New:

New features

  • Tag browser: When grouping items by first letter if adjacent letters have few entries combine them into a single group.
  • Can be controlled via an option in Preferences->Look & fee->Tag browser to combine 'first letters' together if there are a small number of items under adjacent letters
  • Viewer: Allow displaying the current page / total pages in the header/footer. Useful in paged mode to see exactly how many pages are left.
  • Closes tickets: 1899163
  • Viewer search panel: Show more result context in a tooltip when hovering over a search result.
  • Closes tickets: 1899834
  • DOCX Input: Add support for Word controls used to rotate or flip images
  • Only works with output formats such as EPUB that support CSS transforms
  • Viewer image pop-up: Allow maximizing/minimizing the window.
  • Closes tickets: 1899762
  • Edit metadata dialog: Use only a single line for custom column date fields
  • Add an item to search for categories to the category editor context menu.
  • Closes tickets: 1899341
  • Category editor: Add a right click menu to change case of the selected entries.
  • Closes tickets: 1899316

Bug fixes

  • Fix a regression in 5.0 that caused performance of dialogs that contain title/series/tags edit fields to be very poor with large libraries.
  • Closes tickets: 1898221
  • Fix a regression in 5.0 that caused some pop-up menus to appear on the wrong monitor in multi-monitor setups
  • macOS: Fix a long standing bug that prevented drag and drop of multiple items
  • Windows: Fix a regression that broke scanning for default programs for the Open with action
  • Windows: Fix a regression in 5.0 causing some MOBI files with non-BMP characters not being processed correctly.
  • Closes tickets: 1898894
  • E-book viewer: Fix scrolling past the end of chapter boundaries not working in books that have negative margins
  • Edit metadata dialog: fix incorrect rendering of custom column names that start with emoji.
  • Closes tickets: 1899466
  • Quickview: Fix nothing shown after clearing the search.
  • Closes tickets: 1899318
  • Dark mode: Fix radio buttons having no outline.
  • Closes tickets: 1900022
  • Annotations browser: When showing a book in the calibre library that is not currently visible, display an error.
  • Closes tickets: 1900066
  • New news sources
  • Deutsche Welle by VoHe
  • Improved news sources
  • Reuters