Readers

Get a reader software for your computer / device / operating system!

GNU / Linux

Kiwix
zimreader (part of openZIM)
qvido for embedded devices (eg. Ben NanoNote)

Mac OS X

ReactOS / Microsoft Windows

Kiwix

Symbian

WikiOnBoard

Android

Apple iPhone

openZIM

The openZIM project has developed the file format and a free and open source implementation. The implementation is written in C++ and provides libraries and tools to make it easier to integrate ZIM into other projects.

ZIM File Format - documentation on the file format itself, needed if you want to make your own ZIM implementation
Releases - the openZIM codebase