ZIM (file format)

Open file format that stores wiki content for offline usage From Wikipedia, the free encyclopedia

ZIM (file format)

The ZIM file format is an open file format that stores website content for offline usage.[1] The format is defined by the openZIM project, which also supports an open-source ZIM reader called Kiwix. The format is primarily used to store the contents of Wikipedia and other Wikimedia projects, including articles, full-text search indices and auxiliary files.[2][3]

Kiwix on an Android-powered tablet shown the article from Wikipedia for Schools in offline usage

ZIM stands for "Zeno IMproved",[4][5] as it replaced the earlier Zeno file format. Since 2021, the library defaults to Zstandard file compression[6] and also supports LZMA2, as implemented by the XZ Utils library. The openZIM project is sponsored by Wikimedia CH and supported by the Wikimedia Foundation.

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