KOReader AlternativesEbook & PDF Readers like KOReader

KOReader is described as 'An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices' and is a popular PDF Reader in the news & books category. There are more than 50 alternatives to KOReader for a variety of platforms, including Android, Windows, Linux, Mac and Android Tablet apps. The best KOReader alternative is calibre, which is both free and Open Source. Other great apps like KOReader are Okular, Readest, PDFgear and Librera Reader.

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KOReader alternatives are mainly Ebook Readers, but if you're looking for PDF Readers or Ebook Libraries you can filter on that. Other popular filters include Android and Android + Open Source. These are just examples - use the filter bar below to find more specific alternatives to KOReader.
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Alternatives
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Alternatives list

  1. calibre icon

    calibre

     1564 likes

    Free e-book manager with features including library management, format conversion, syncing to devices, internet-independent operation, built-in viewer, news download as e-books, text-to-speech, privacy focus, extensible plugins, and no registration or tracking.

    141 calibre alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
    • Flathub
    • PortableApps.com
    • Homebrew
    • Haiku
    • IN flagIndia
    calibre screenshot 1
    Good alternative?
     
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    2
  2. Okular icon

    Okular

     510 likes

    Multi-platform document viewer supporting PDF, ePub, comics, images, and Markdown with annotation, digital signature verification, tabbed interface, sidebar navigation, text selection, text-to-speech, magnifier, search, dark mode, and plugin support.

    132 Okular alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Linux Mobile
    • Flathub
    • Haiku
    • DE flagGermany
    • European Union flagEU
    Okular screenshot 1
    Good alternative?
     
  4. Readest icon

    Readest

     54 likes

    Readest is a modern, open-source ebook reader for Windows, macOS, Linux, iOS, Android, and the web.

    22 Readest alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Flathub
    • Flatpak
    • US flagUnited States
    Annotation
    Good alternative?
     
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  5. Ad
    Screenshot
    Epubor Ultimate icon
    Epubor Ultimate

    Convert eBooks into multiple formats like EPUB, PDF, or Mobi seamlessly, preserving original display. Edit metadata for personalization. Compatible with major e-Readers and apps like Kindle, Kobo, and Adobe Digital Editions, allo...

    https://www.epubor.com
    Learn More
  6. PDFgear icon

    PDFgear

     75 likes

    Read, edit, convert, merge, and sign PDF files across devices, for completely free and without signing up.

    88 PDFgear alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • SG flagSingapore
    PDFgear screenshot 1
    Good alternative?
     
  7. Librera Reader icon

    Librera Reader

     82 likes

    Librera Reader is a highly customizable and feature-rich application for reading books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR formats on Android devices.

    78 Librera Reader alternatives

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    • OpenAPK
    • SK flagSlovakia
    • European Union flagEU
    Librera Reader screenshot 1
    Good alternative?
     
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  9. Koodo Reader icon

    Koodo Reader

     77 likes

    Koodo Reader is a powerful ebook reader designed to provide a simple and easy-to-use reading experience.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Flathub
    • CN flagChina
    Koodo Reader screenshot 1
    Good alternative?
     
  10. MuPDF icon

    MuPDF

     163 likes

    MuPDF offers a highly versatile PDF, XPS, and eBook interpreter, customizable as a renderer, viewer, or toolkit. Features include digital signatures, redactions, form filling, annotations, and page manipulation, ideal for mobile, eBooks, and embedded apps supporting Java, C++, and Python.

    112 MuPDF alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    • US flagUnited States
    MuPDF screenshot 1
    Good alternative?
     
  11. Amazon Kindle icon

    Amazon Kindle

     246 likes

    The Kindle app puts millions of books, magazines, newspapers, comics, and manga at your fingertips.

    132 Amazon Kindle alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • US flagUnited States
    Amazon Kindle screenshot 1
    Amazon Kindle screenshot 2
    Amazon Kindle screenshot 3
    Good alternative?
     
  13. Moon+ Reader icon

    Moon+ Reader

     99 likes

    Innovative book reader with powerful controls & full functions.

    93 Moon+ Reader alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Android
    • Android Tablet
    • CN flagChina
    Moon+ Reader screenshot 1
    Moon+ Reader screenshot 2
    Moon+ Reader screenshot 3
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  14. Book's Story icon

    Book's Story

     35 likes

    Material3 eBook reader - Book's Story. Built with Jetpack Compose. Free & Open Source & Ad Free. 4 supported file formats (.txt, .pdf, .epub, .fb2), 2 supported languages. Lots of customization.

    Cost / License

    Application type

    Platforms

    • Android
    • F-Droid
    Book's Story screenshot 1
    Good alternative?
     
  15. Openlib icon

    Openlib

     36 likes

    Openlib is an open source app to download and read books from shadow library (Anna’s Archive). The App Has Built In Reader to Read Books.

    81 Openlib alternatives

    Cost / License

    Application type

    Platforms

    • Android
    • F-Droid
    Openlib screenshot 1
    Openlib screenshot 2
    Openlib screenshot 3
    Good alternative?
     
12 of 93 KOReader alternatives