calibre is described as 'Free e-book manager offering library management, multi-format conversion, syncing to devices, news download as e-books, built-in viewer, editor, and privacy' and is a leading Ebook Reader in the news & books category. There are more than 100 alternatives to calibre for a variety of platforms, including Windows, Android, Mac, Linux and Web-based apps. The best calibre alternative is KOReader, which is both free and Open Source. Other great apps like calibre are Readest, Foliate, Librera Reader and Koodo Reader.
Storyteller is a self-hosted platform for creating and reading ebooks with synced narration. It's made of three components: the API server, the web interface, and the mobile apps. Together, these components allow you to take audiobooks and ebooks that you already own and...
Customizable reader for EPUB, MOBI, AZW, PDF, FB2, and TXT, offering text-to-speech, bookmarks, highlighting, notes, adjustable fonts, color themes, intuitive interface, quick annotations, search, theme customization, and background image support.
China
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.
France
EU
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.
eBook solution offering multi-format library management, cross-device syncing of uploads, bookmarks, and highlights, online and offline access, private sharing, analytics, and secure digital library deployment for individuals, businesses, and schools.
Jamaica
Discover uRead, your ultimate companion for reading and listening! Whether you’re a casual reader or a book enthusiast, uRead transforms your experience with advanced features and a user-friendly design.
A clean and simple way to read your books on any device and build your own online library.
GermanyEU
Reading app for Mac with adaptive AI companion, full-page calm interface, and file support for PDFs, EPUBs, DRM-free Kindle files. Offers local private processing, on-device OCR for scanned pages, and a user model that tracks understanding and progress for custom assistance.
China
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.
Russia
Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .
GermanyEU
Supports EPUB and PDF formats, reading borrowed library and DRM-protected eBooks on Windows, macOS, tablets, and phones, with features like annotation, syncing across devices, offline reading modes, organizational tools, and custom shelves for managing content.
United States
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.
CyprusEU
