Free calibre Alternatives

Popular free Alternatives to calibre for Android, Windows, iPhone, Android Tablet, iPad and more. Explore 25+ apps like calibre, all suggested and ranked by the AlternativeTo user community.

E-book manager, viewer, and converter. If you're looking for more info about calibre like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.

The list of alternatives was last updated: 9/17/2020 6:17:00 PM

Alternatives to calibre for all platforms with Free License

  • Okular

    Okular is a universal document viewer based developed by KDE. Okular works on multiple platforms, including but not limited to Linux, Windows, Mac OS X, *BSD, etc. Okular combines the excellent functionalities with the versatility of supporting different kind of documents, like PDF, Postscript, DjVu, CHM, XPS, ePub and others. Okular is a Free Software PDF reader.

    Free Open Source Mac Windows Linux BSD

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  • Moon+ Reader

    Innovative book reader with powerful controls & full functions: • Read thousands of ebooks for free, supports online ebook libraries • Read local books with smooth scroll and tons of innovation Support epub, pdf, mobi, chm, cbr, cbz, umd, fb2, txt, html, rar, zip or OPDS, key features: Full visual options: line space, font scale, bold, italic, shadow, justified alignment, alpha colors, fading edge etc. 10+ themes embedded, includes Day & Night mode switcher.

    • Only a reader. Does not have any library management capabilities. Guest • Oct 2019 • 12 agrees and 1 disagrees Disagree   Agree
    • It's not a better alternative but it is close enough! davmajerJul 2019 • 2 agrees and 6 disagrees Disagree   Agree
    • Only for reading; restricted to handheld devices. madamekMay 2018 • 16 agrees and 4 disagrees Disagree   Agree
    • Not management system, only reader. Guest • Jul 2017 • 5 agrees and 2 disagrees Disagree   Agree

    Freemium Android Android Tablet Kindle Fire

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  • Polar

    Polar is a powerful desktop app for managing all your web content, books, and notes. Polar keeps all your content in one place, supports tagging, annotation, highlighting and keeps track of your reading progress. POLAR allows you to keep all your documents, annotations, and flashcards in once place. Never lose track of what you're reading again.

    Freemium $ $ $ Open Source Mac Windows Linux Electron / Atom Shell

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  • Document Viewer

    Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid . Supports the following formats: - PDF - DjVu - EPUB - XPS (OpenXPS) - CBZ (Comic Books, no support for rar compressed CBR) - FictionBook (fb2) Collaboration with electronic publication sites and access to online ebook catalogs is allowed by the supported OPDS protocol.

    Free Open Source Android Android Tablet F-Droid

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  • Cool Reader

    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 antialiasing, extra smooth scrolling and a lot of other features turn reading into a pleasure. Read Aloud function saves your eyes.

    • Not management system, only reader. Guest • Jul 2017 • 9 agrees and 1 disagrees Disagree   Agree

    Free Open Source Windows Linux Android Android Tablet

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  • Foliate

    A simple and modern GTK eBook viewer, built with GJS and Epub.js. Features View EPUB files Two-page view and scrolled view Customize font and line-spacing Light, sepia, dark, and invert mode Reading progress slider with chapter marks Bookmarks and annotations Find in book Quick dictionary lookup Touchpad gestures: use two-finger swipe to turn the page View EPUB files. Foliate is based on Epub.js, and supports both two-page view and scrolled view. Customize font and line-spacing.

    Free Open Source Linux

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  • Aldiko

    Aldiko is an e-book reader application for the Android operating system. It supports the EPUB industry standard format for digital publications and incorporates facilities for browsing online catalogs on thousands of books (including thousands of free public domain work) and downloading them directly into the users personal library. The application features a bookshelf-like user interface that lets user navigate their collection of eBooks.

    • Discontinued
      The official website is no longer available. Last version, 3.1.3, released in October 2018, can be still downloaded from the Google Play Store.
    • Calibre manages and converts a collection. It's not just a reader. Guest • Dec 2017 • 4 agrees and 2 disagrees Disagree   Agree
    • I use both....calibre to manage my college, aldiko to connect to it and read books on my tablets. Guest • Apr 2017 • 1 agrees and 3 disagrees Disagree   Agree

    Freemium $ $ $ Android Android Tablet

    Aldiko icon
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  • KOReader

    KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Main features: * portable: runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS.

    Free Open Source Linux Android Kobo PocketBook Reader Ubuntu Touch ... Amazon Kindle

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  • Apple Books

    iBooks is an amazing way to download and read books. It includes the iBookstore, where you can download both the latest best-selling books, and your favorite classics. Browse your library on a beautiful bookshelf, tap a book to open it, flip through pages with a swipe or a tap, and bookmark or add notes to your favorite passages. iBooks supports the ePub and PDF file formats.

    Free Mac iPhone iPad

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