OpenZIM

ZIM is a perfectly suited file format to store Wikipedia on a USB stick

The openZIM project proposes offline storage solutions for content coming from the Web. The project has two different targets:

• Definition of the ZIM file format: an open and standardized file format,
• Implementation of the libzim: an open source (GPLv2) implementation of the ZIM file format.

See our mission statement for more details.

The openZIM project was launched by Wikimedia CH (Switzerland) and is actively maintained by Kiwix and supported by the Wikimedia Foundation.

Users

Download a ZIM reader

Download a ZIM file

Developers

ZIM format ZIM file format Get the code Git Releases Libraries Libzim Bindings

Other Features Roadmap Report a Bug Known Bugs

General

Who and where we are Join our Mailinglist (Archive) Chat with us at #openzim at Libera.chat (IRC) Project Team Advertising Visuals Press Releases

Publishers Build your ZIM file Validate your ZIM file Debug your ZIM file Other Developer Meetings Archives