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KOReader is a document viewer for E Ink devices.

Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop GNU/Linux.



Verified by

Verified on




Verified by


Verified on

14 October 2022

Leaders and contributors

Resources and communication

Software prerequisites

Required to buildRagel_State_Machine_Compiler
Required to buildpatch
Required to buildwget
Required to buildluarock
Required to buildgit
Required to buildgcc
Required to buildnasm
Required to buildautoconf
Required to buildunzip
Required to buildcmake
Required to buildclang


Property "Submitted by" (as page type) with input value "{{{Submitted by}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. "{{{Submitted date}}}" contains an extrinsic dash or other characters that are invalid for a date interpretation.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.