Ebook Tools Directory/Ebook Readers/KOReader

Ebook ReadersVerified Authentic ReleaseAGPL-3.0

KOReader

Versatile multi-platform document reader optimized for E-ink devices, Android, and tablets.

30,943 Stars2,026 ForksLua / CRelease: v2026.07.1

Download Assets Official Website Documentation

Tool Overview

KOReader is an e-book and document reader created specifically for E-ink readers (Kindle, Kobo, Onyx Boox, PocketBook) and Android tablets. It features superior PDF reflow engines, StarDict dictionary lookups, Calibre metadata integration, Wallabag and OPDS sync, and full control over margins, contrast, and rendering engines.

System Requirements: Android 4.4+, jailbroken Kindle, Kobo, or desktop emulator

Key Capabilities & Features

K2pdfopt engine for high-performance mobile reflow of two-column PDF scans

Extensive format support: PDF, EPUB, DJVU, CBZ, FB2, TXT, and DOCX

OPDS catalog integration and remote Calibre library wireless sync

StarDict offline dictionary lookups and Wikipedia integrations

Night mode, contrast enhancement, and e-ink specific dithering algorithms

Reading progress synchronization across multiple devices via Kosync

Package Manager & CLI Installation

Install and update KOReader using your preferred operating system package manager or container runtime:

$ Available on F-Droid: org.koreader.launcher

Verified Official Release Downloads

v2026.07.1

All binaries are sourced directly from the official developer release assets without re-packaging or modifications.

AndroidVerified

koreader-android-arm-v2026.07.1.apk

Size: 27.74 MBDownloads: 41,732

Download Android

AndroidVerified

koreader-android-arm64-v2026.07.1.apk

Size: 28.69 MBDownloads: 70,092

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AndroidVerified

koreader-android-x86-v2026.07.1.apk

Size: 29.25 MBDownloads: 8,536

Download Android

Generic BinaryVerified

koreader-cervantes-v2026.07.1.zip

Size: 38.69 MBDownloads: 2,105

Download Generic

Generic BinaryVerified

koreader-kindle-legacy-v2026.07.1.zip

Size: 39.47 MBDownloads: 8,772

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Generic BinaryVerified

koreader-kindle-v2026.07.1.zip

Size: 38.83 MBDownloads: 24,162

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Generic BinaryVerified

koreader-kindlehf-v2026.07.1.zip

Size: 38.82 MBDownloads: 19,149

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Generic BinaryVerified

koreader-kindlepw2-v2026.07.1.zip

Size: 38.83 MBDownloads: 49,167

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Generic BinaryVerified

koreader-kobo-v2026.07.1.zip

Size: 40.41 MBDownloads: 21,618

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Generic BinaryVerified

koreader-kobov5-v2026.07.1.zip

Size: 40.39 MBDownloads: 5,490

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Linux ARM64Verified

koreader-linux-arm64-v2026.07.1.tar.xz

Size: 27.92 MBDownloads: 1,041

Download Linux

Linux x64Verified

koreader-linux-armhf-v2026.07.1.tar.xz

Size: 27.34 MBDownloads: 342

Download Linux

Linux x64Verified

koreader-linux-x86_64-v2026.07.1.tar.xz

Size: 28.75 MBDownloads: 5,507

Download Linux

Generic BinaryVerified

koreader-pocketbook-v2026.07.1.zip

Size: 38.88 MBDownloads: 9,345

Download Generic

Generic BinaryVerified

koreader-remarkable-aarch64-v2026.07.1.zip

Size: 39.91 MBDownloads: 762

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Generic BinaryVerified

koreader-remarkable-v2026.07.1.targz

Size: 39.33 MBDownloads: 246

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Generic BinaryVerified

koreader-remarkable-v2026.07.1.zip

Size: 38.57 MBDownloads: 705

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Linux ARM64Verified

koreader-v2026.07.1-aarch64.AppImage

Size: 38.5 MBDownloads: 1,129

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Linux x64Verified

koreader-v2026.07.1-armhf.AppImage

Size: 36.81 MBDownloads: 267

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Linux x64Verified

koreader-v2026.07.1-x86_64.AppImage

Size: 38.5 MBDownloads: 4,284

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Linux x64Verified

koreader_2026.07.1-1_amd64.deb

Size: 28.56 MBDownloads: 6,663

Download Linux

Linux ARM64Verified

koreader_2026.07.1-1_arm64.deb

Size: 27.74 MBDownloads: 832

Download Linux

Linux x64Verified

koreader_2026.07.1-1_armhf.deb

Size: 27.15 MBDownloads: 393

Download Linux

Source Code ZIPVerified

koreader-v2026.07.1-source.zip

Size: GitHub Archive

Download Source

Client-Side SHA-256 Binary Integrity Verifier

100% Client-Side. Verified locally in your browser using the Web Crypto API. No files are uploaded.

Drag & drop downloaded binary here, or browse file

Computes SHA-256 hash in real-time to guarantee file authenticity against developer releases.

Security Verification Status: Verified Official Multi-Platform Binaries

Downloads link directly to the official GitHub releases hosted by koreader/koreader. Files are checked for authentic digital developer signatures and verified against open-source repository tags.

Latest Release Changelog (v2026.07.1)

Minor bug fixes, mainly for some virtual artifacts in rounded corners (#15753). ## What's Changed * Fix OPDS 2.0 http header (https://github.com/koreader/koreader/pull/15751) @hius07 * bump base (https://github.com/koreader/koreader/pull/15746) @benoit-pierre * Maintain scroll offset for a kept open, multi-page QuickMenu (https://github.com/koreader/koreader/pull/15756) @asz3 * luxl: keep attribute values that are not ASCII (https://github.com/koreader/koreader/pull/15758) @iav * Support tolino fw >=5.18 (https://github.com/koreader/koreader/pull/15759) @beedaddy * OPDS2.0: fix author (https://github.com/koreader/koreader/pull/15770) @hius07 * Wallabag: skip archive dir in recursive scan (https://github.com/koreader/koreader/pull/15767) @liskin ## New Contributors * @asz3 made their first contribution in https://github.com/koreader/koreader/pull/15756 **Full Changelog**: https://github.com/koreader/koreader/compare/v2026.07...v2026.07.1

Specifications & Compatibility

Supported Ebook Formats

PDFEPUBMOBIDJVUCBZFB2TXTHTMLRTFCHM

Supported Operating Systems

AndroidLinuxKindleKoboPocketBookmacOSWindows

Primary LanguageLua / C

Software LicenseAGPL-3.0

Official Repositorykoreader/koreader

Last Checked & Verified2026-11-08 04:49:36 UTC

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