Calibre
calibre is an open source e-book library management application developed by users of e-books for users of e-books. 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
Best Calibre alternatives
Here are the latest news about Calibre:
14.09.25. Calibre improves support for 2024 and newer MTP based Kindles
ILM software Calibre recently improved its Kindle drivers that allows to work with 2024 and newer Kindles that have a new file system called MTP. Kindle MTP driver now allows to mark all books sent to Kindle as personal documents, send books to subfolders inside the root folder, generate page number files (APNX), import KFX files, send cover thumbnails to Kindle Scribe and increase the size of these thumbnails. Also new updates include ability to set up a tooltip template for every column, color swatch in the results of annotation browser, support for embedded fonts in HTML output, Fetch news button that shows recently downloaded news sources, improved performance of the Piper Neural text to speech engine
2025. Calibre improves support for Kobo e-Readers
Library organizer software Calibre has released a new version 8.0.1 which boasts improved support for Kobo e-readers. Calibre can now natively edit, view and convert Kobo’s proprietary KEPUB file format to regular EPUB files for reading on non-Kobo devices and apps (like Calibre itself). Additionally, users of Kobo devices can now use Calibre to convert EPUB to KEPUB automatically when sending books across, saving time and hassle of first converting and then sending. Besides, Calibre can now connect to folders and treat them as USB mass storage devices. That might sound odd, but according to Calibre, this is especially useful if you're running Calibre on a Chromebook. That's because Chrome OS treats external USB drives as folders.
2024. Calibre added support for new Kobo color e-readers
Ebook management software Calibre has updated its Kobo driver to add support for the new color Kobo devices. Besides, the new version of the software includes other new features. In the Edit book dialog now you can add a setting to control cursor width under Preferences->Editor settings. The Regex-function mode allows to show a confirmation popup when closing the function editor when there are unsaved changes. Spell check now allows to exclude words in ALL CAPS or with numbers or in camelCase/snake_case from the list of words. The search now allows easy inverting the current search via the right click menu on the search box.
14.09.25. Calibre improves support for 2024 and newer MTP based Kindles
ILM software Calibre recently improved its Kindle drivers that allows to work with 2024 and newer Kindles that have a new file system called MTP. Kindle MTP driver now allows to mark all books sent to Kindle as personal documents, send books to subfolders inside the root folder, generate page number files (APNX), import KFX files, send cover thumbnails to Kindle Scribe and increase the size of these thumbnails. Also new updates include ability to set up a tooltip template for every column, color swatch in the results of annotation browser, support for embedded fonts in HTML output, Fetch news button that shows recently downloaded news sources, improved performance of the Piper Neural text to speech engine
2025. Calibre improves support for Kobo e-Readers
Library organizer software Calibre has released a new version 8.0.1 which boasts improved support for Kobo e-readers. Calibre can now natively edit, view and convert Kobo’s proprietary KEPUB file format to regular EPUB files for reading on non-Kobo devices and apps (like Calibre itself). Additionally, users of Kobo devices can now use Calibre to convert EPUB to KEPUB automatically when sending books across, saving time and hassle of first converting and then sending. Besides, Calibre can now connect to folders and treat them as USB mass storage devices. That might sound odd, but according to Calibre, this is especially useful if you're running Calibre on a Chromebook. That's because Chrome OS treats external USB drives as folders.
2024. Calibre added support for new Kobo color e-readers
Ebook management software Calibre has updated its Kobo driver to add support for the new color Kobo devices. Besides, the new version of the software includes other new features. In the Edit book dialog now you can add a setting to control cursor width under Preferences->Editor settings. The Regex-function mode allows to show a confirmation popup when closing the function editor when there are unsaved changes. Spell check now allows to exclude words in ALL CAPS or with numbers or in camelCase/snake_case from the list of words. The search now allows easy inverting the current search via the right click menu on the search box.
I do not like the fact that Calibre appends a number to folder, that makes a real mess. However that would be the only annoyance. Don't miss this effective, professional tool that is FREE!
It doesn't convert, but the interface is much better and easy to use.