Alternatives

Best Thorium Reader alternatives in 2026

Thorium Reader is cross-platform desktop reader for EPUB and accessible publications. These 9 alternatives come from the same rankings, ordered by editorial score. Connected products carry a small, disclosed lift.

9 alternatives From best ebook reader apps How we rank Share

Ranked alternatives

  1. Kindle

    Also runs on iOS, Android. Free apps on iOS, Android, Mac and PC that read the Kindle Store library. Books are bought from Amazon, and the apps are closed source, so the choice suits Amazon customers.

    Best for Reading books bought from Amazon

    iOS, iPadOSAndroidmacOSWindowsFree

  2. Apple Books

    Also runs on iOS. Free app with no subscription, offline reading and audiobook playback on iPhone, iPad and Mac. It works only on Apple devices, and books are priced one at a time.

    Best for Apple users who buy ebooks and audiobooks from Apple

    iOS, iPadOSmacOSFree

  3. Readest

    Also runs on Android, iOS, Web. Open-source EPUB and PDF reader with apps on macOS, Windows, Linux, Android, iOS and the web, plus highlights, notes and text-to-speech. Kindle and Apple Books have longer track records.

    Best for Open-source reading across phones and desktops

    macOSWindowsLinuxAndroidiOSWebFree and open sourceOpen source

  4. KOReader

    Also runs on Android. Open-source reader for many formats that runs on Kindle, Kobo, PocketBook, Android and desktop Linux. It reads files you already have, but it does not sell books, so it suits readers who manage their own files.

    Best for E-ink devices and many document formats

    AndroidLinuxFree and open sourceOpen source

  5. Libby

    Also runs on iOS, Android, Web. The OverDrive app that borrows ebooks and audiobooks from a public library for free, on iPhone, Android and the web. Access depends on your library card, and titles are on loan, unlike Kindle or Apple Books purchases.

    Best for Free ebooks and audiobooks from a public library

    iOSAndroidWebFree

  6. calibre

    Free and open source library manager that converts books between formats on Windows, macOS and Linux. It is a desktop tool with no phone reading app, so it complements a reader rather than replacing one.

    Best for Managing and converting a large personal library

    WindowsmacOSLinuxFree and open sourceOpen source

  7. Foliate

    An open-source ebook reader for Linux that opens EPUB and Mobipocket files, with auto-hyphenation, popup footnotes and media overlays. It is a reader, not a library manager, unlike calibre, and it runs only on Linux.

    Best for A simple open-source reader on Linux

    LinuxFree and open sourceOpen source

  8. FBReader

    Also runs on iOS, Android. A free reader for EPUB, FB2 and Readium LCP-protected books on six platforms, including Linux and Chrome OS. It has been closed source since 2015, unlike Readest and KOReader in this list.

    Best for EPUB and DRM-protected books on many systems

    iOSAndroidWindowsmacOSLinuxChromeOSFree

  9. Google Play Books

    Also runs on Android, Web. Google's store and reader for ebooks and audiobooks, with titles bought one at a time and no subscription. It works on Android and in a browser, and it supports offline reading and Android Auto audiobooks.

    Best for Android readers who buy titles one at a time

    AndroidWebPaid

About Thorium Reader alternatives

What is the best alternative to Thorium Reader?
On listme.name the highest-scored alternative is Kindle, followed by Apple Books. The right choice depends on price, platform and whether you need open source.
Is there a free alternative to Thorium Reader?
Yes. Free options include Kindle, Apple Books, Readest.