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Mobile App

KOReader

A free ebook reader for e-ink devices that handles PDFs and EPUBs with ease.

Visit KOReader4.7
  • Rating

    4.7 / 5

  • Pricing

    Free

  • Difficulty

    Intermediate

  • Works on

    Android, Linux, Offline

Built with love by Shushant Lakhyani. Building bestproductivityresources.com

What is KOReader?

KOReader is a free, open-source ebook reader built for e-ink devices such as Kobo, Kindle, PocketBook and reMarkable, and it also runs on Android and Linux. It opens EPUB, PDF, DjVu and more, reflows hard-to-read PDFs, and adds dictionary lookups, highlights and reading stats, so you read and study with fewer distractions.

Third-party open-source projects. We are not affiliated with their authors; repositories are provided as-is by their maintainers. Review each project's license, code and security before installing. See our Disclaimer.

Pros: what KOReader does well

  • Reflows PDFs for small screens
  • Highlights, notes and dictionary built in
  • Free and open source

Cons: where it falls short

  • Installing on e-readers takes some steps
  • Many settings to learn

Who KOReader is for

E-reader owners who want more control over PDFs and long reads.

Who can skip it

Anyone happy with their e-reader's built-in app.

KOReader alternatives

Not sold on KOReader? These do a similar job, and each card says what it has in common.

Koodo Reader

Focus: epub. Shares ebook reader and pdf reader with KOReader. A desktop app, not a mobile app. Adds Windows, macOS and Web. Rated 4.6 (KOReader: 4.7).

Desktop AppFreeWindows, macOS

Foliate

Focus: epub, annotations and gnome. Shares ebook reader and open source with KOReader. A desktop app, not a mobile app. Rated 4.6 (KOReader: 4.7).

Desktop AppFreeLinux, Offline

Readest

Focus: epub and annotations. Shares ebook reader and open source with KOReader. A desktop app, not a mobile app. Adds Windows, macOS and iOS. Rated 4.6 (KOReader: 4.7).

Desktop AppFreeWindows, macOS

Sioyek

Focus: research papers and keyboard. Shares pdf reader and open source with KOReader. A desktop app, not a mobile app. Adds Windows and macOS. Rated 4.6 (KOReader: 4.7).

Desktop AppFreeWindows, macOS

Thorium Reader

Focus: epub and accessibility. Shares ebook reader and open source with KOReader. A desktop app, not a mobile app. Adds macOS and Windows. Rated 4.5 (KOReader: 4.7).

Desktop AppFreemacOS, Windows

SumatraPDF

Focus: lightweight and windows. Shares pdf reader and ebook reader with KOReader. A Windows app, not a mobile app. Adds Windows. Rated 4.6 (KOReader: 4.7).

Windows AppFreeWindows

Free alternatives to KOReader

Want to spend nothing? These free picks cover similar ground.

Audiobookshelf

Focus: audiobooks, podcasts and self-hosted. Shares open source and github with KOReader. A web app, not a mobile app. Adds Web and iOS. Same 4.7 rating.

Web AppFreeWeb, iOS

SponsorBlock

Focus: youtube, skip sponsors and video. Shares open source and github with KOReader. A browser extension, not a mobile app. Adds Chrome, Firefox and Safari. Same 4.7 rating.

Browser ExtensionFreeChrome, Firefox

Kiwix

Focus: offline wikipedia, reference and offline reading. Shares open source and github with KOReader. A desktop app, not a mobile app. Adds Windows. Rated 4.6 (KOReader: 4.7).

Desktop AppFreeWindows, Linux

Komga

Focus: comics, manga and ebooks. Shares open source and github with KOReader. A web app, not a mobile app. Adds Web. Rated 4.6 (KOReader: 4.7).

Web AppFreeWeb

Miniflux

Focus: rss reader, news and self-hosted. Shares open source and github with KOReader. A web app, not a mobile app. Adds Web. Rated 4.6 (KOReader: 4.7).

Web AppFreeWeb, Cross-Platform

Calibre-Web

Focus: ebooks, calibre and reading. Shares open source and github with KOReader. A web app, not a mobile app. Adds Web. Rated 4.5 (KOReader: 4.7).

Web AppFreeWeb, Cross-Platform
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