There are many alternatives to calibre for Windows if you are looking for a replacement. The best Windows alternative is Koodo Reader, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to calibre and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to calibre are Readest, Sigil, Kavita and Citadel (ebook library manager).
Koodo Reader is an all-in-one e-book reader that can help you better manage and study your e-books. It's free and open-source.
I use the web-based platform and it's just very good. Super intuitive and minimalistic but with great functionalities and customization. And it's FOSS.
Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.
Sigil is a multi-platform ebook editor. It is designed to edit books in ePub format.
Lightning fast with a slick design, Kavita is a rocket-fueled self-hosted digital library which supports a vast array of file formats. Install to start reading and share your server with your friends. book reader, self hosted, manga, comics, free, manhwa, e readers, electronic...
Citadel helps you manage your ebook libraries. It provides a simple, user-friendly interface to add new books to your library or update book metadata like titles, authors, and tags, all while remaining compatible with Calibre.
Thorium Reader is a free, open source multi-language EPUB reader for Windows 10, MacOS and Linux. It's privacy aware and highly accessible for visually impaired and dyslexic people.
Optimize your reading experience with the best eBook reader across formats.
Reads EPUB, MOBI, FB2, and PDF files, manages digital libraries, tracks reading progress, allows notes, highlights, bookmarks, text translation, online search, night mode, full-screen, customizable layouts, text-to-speech, and displays ebook metadata.
The most powerful and easy-to-use Book Organizer
Alfa Ebooks Manager is a free program that allows to organize your electronic and paper books in single e-Library.
The Windows version of AIReader has an absolutely terrible text layout, and an even worse interface. I'm not sure if it's possible to change the text layout, but I'm pretty sure it isn't.
Cool Reader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Understands a number of text document formats, suppurt OPDS (in new ui-opengl version). Fully customizable palette, text reformatting with any font size, font...
Not management system, only reader.
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cleaner and significantly better user interface and user friendly.