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, iPhone and Linux apps. The best calibre alternative is KOReader, which is both free and Open Source. Other great apps like calibre are Readest, Librera Reader, Foliate and Koodo Reader.
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.
Read, search, make notes & highlights in PDF (Adobe DRM), EPUB (Adobe DRM), DjVu, TXT, FB2, FB2.zip book formats. Enjoy a unique, fast and user-friendly interface that was designed to provide the most convenient set of options for you to fully enjoy reading a book.
This is a book catalogue application, to keep track of your books and comics. Books can be added either manually, by ISBN, or by barcode.
Flow is an online EPUB reader that offers its services at no cost and is compatible across a range of platforms including Web, Windows, Linux, macOS, Android, and iOS. It provides the convenience of reading multiple books simultaneously and enables seamless reading across...
EPUBReader is a Firefox and Chrome addon which lets you read ePub-files just in the browser. You don't need to install additional software!
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...
TextStack is a reading tool for developers tackling dense technical books like Designing Data-Intensive Applications, ML papers, or distributed systems texts. Tap any unfamiliar term, get a 2-3 sentence LLM-powered explanation that's aware of the book's domain —...
Komga is a free and open source comics/mangas server with a web-based interface for browsing, searching and reading books and series as well as for administering accounts and access.
MyBookshelf is web based program to manage your library of ebooks. It is fully web based, with simple, yet powerful interface. It’s written in python language and django web framework offers great flexibility and extensibility. Ideal for sharing ebooks within a group of people.
Store your ebooks. Track your reading. Discover new favourites.
Goodreads meets Dropbox - your own ebook cloud library for all your digital reading.
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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.