Readest AlternativesOnly apps categorised as PDF Readers

The best PDF Reader alternative to Readest is calibre, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Readest and 14 are PDF Readers so hopefully you can find a suitable replacement. Other interesting PDF Reader alternatives to Readest are KOReader, Koodo Reader, Foliate and FBReader.

filter to find the best alternatives

Readest alternatives are mainly Ebook Readers, but if you're looking for PDF Readers or Ebook Libraries you can filter on that. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Readest.
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Alternatives
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Alternatives list

  1. calibre icon

    calibre

     1563 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?
     
  2. KOReader icon

    KOReader

     87 likes

    An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.

    93 KOReader alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Android
    • Android Tablet
    • AppImageHub
    • Kobo Books
    • Linux Mobile
    • Flathub
    • F-Droid
    • Kindle Fire
    • OpenAPK
    KOReader screenshot 1
    KOReader screenshot 2
    KOReader screenshot 3
    Good alternative?
     
  4. 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?
     
  8. Thorium Reader icon

    Thorium Reader

     23 likes

    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.

    52 Thorium Reader alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • FR flagFrance
    • European Union flagEU
    Thorium Reader screenshot 1
    Good alternative?
     
  9. Librum icon

    Librum

     13 likes

    A clean and simple way to read your books on any device and build your own online library.

    68 Librum alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • DE flagGermany
    • European Union flagEU
    Librum screenshot 1
    Good alternative?
     
  10. Chaka icon

    Chaka

     5 likes

    Read fluently and comfortably, with simple and clear interface.

    Supported Document Types: PDF, EPUB, MOBI, CBZ, FB2, XPS, TXT, HTML, OFFICE(DOCX, XLSX, PPTX) and ZIP/GZIP

    Features: Horizontal / Vertical Flip Continuous Scroll Lock Stray: Keep scroll straight Margin Crop Focus M.

    Cost / License

    Application type

    Platforms

    • Android
    Chaka screenshot 1
    Chaka screenshot 2
    Chaka screenshot 3
    Good alternative?
     
  11. BookShelves icon

    BookShelves

     3 likes

    eBook reader and library manager designed for macOS and iOS supporting EPUB, PDF, MOBI, AZW, AZW3, KEPUB, and CBZ formats, customizable fonts and themes, privacy-focused local or iCloud data, automatic sync, and 100,000+ free public domain books.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    • DE flagGermany
    • European Union flagEU
    BookShelves screenshot 1
    Good alternative?
     
  12. ReadAware icon

    ReadAware

     2 likes

    A local-first, AI-native reading app that turns books, highlights, notes, and conversations into durable context.

    Cost / License

    Application type

    Platforms

    • Windows
    • Mac
    • Linux
    • Android
    The library — every format in one place.
    Good alternative?
     
  13. DinoReader icon

    DinoReader

     1 like

    DinoReader is built on the FBReader reading engine, but includes features not currently available in the mainstream app:

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Android
    • Android Tablet
    • GB flagUnited Kingdom
    DinoReader screenshot 1
    Good alternative?
     
  14. ShelfStream icon

    ShelfStream

     2 likes

    A next-generation iOS viewer app for self-scanned manga and books with AI-powered organization, cloud storage support, and NAS streaming.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • iPhone
    • iPad
    • JP flagJapan
    ShelfStream screenshot 1
    ShelfStream screenshot 2
    ShelfStream screenshot 3
    Good alternative?
     
12 of 14 Readest alternatives