Welcome to **Kindle/Kobo Open Reader (KOReader)** WIKI!

You can check out the latest download from the Download page.

WIKI in other languages:

• 简体中文

NOTICE: Some of the content on the WIKI might be out of date. Please help make it better by opening an issue if you find any of the instructions unclear or confusing.

KOReader is a document viewer for eink devices. The formats it supports include PDF, DjVu, XPS, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, EPUB, DOC, MOBI, and ZIP files.

KOReader is rewritten from kindlepdfviewer, which is originally built by hawhill based on the mupdf source. Since then it has come a long way, based on requests and updates by hackers around the world.

There are related discussion threads on the MobileRead Forums, one of the largest English language web forums for e-book reading/publishing:

• KOReader for Kindle devices

• KOReader for Kobo devices

• KOReader for PocketBook devices

• KOReader for Android devices

For a more thorough division for different devices please take a look at NiLuJe's builds. Here, for instance, you will find KOReader for non-touch Kindles among others too! (weekly-ish builds, not tied to any stable/nightly tag. The device separation stems from the custom, highly device-specific toolchains used).

Overview:

• Features list
• KOReader Screenshots

Getting started:

• Installation on Kindle devices
• Installation on Kobo devices
• Installation on PocketBook devices
• KOReader Gestures
• Dictionary support
• Wikipedia support
• OPDS support
• Troubleshooting

Plugins:

• Calibre wireless connection
• Evernote export
• Progress sync
• Zsync transport
• Statistics plugin

Advanced:

• Tips and Tricks
• Change defaults
• Reflowing tweaks

• How to Start
• Coding Style
• UI Design
• How to collaborate with Git
• Bug Hunting in Koreader-base
• Remote debugging with gdbserver
• How to port KOReader to other platform

See our issue tracker.

Join the KOReader mailing list.

• Changelog