XZ Utils

XZ Utils (previously LZMA Utils) is a set of free software command-line lossless data compressors, including the programs lzma and xz, for Unix-like operating systems and, from version 5.0 onwards, Microsoft Windows. For compression/decompression the Lempel–Ziv–Markov chain algorithm (LZMA) is used. XZ Utils started as a Unix port of Igor Pavlov's LZMA-SDK that has been adapted to fit seamlessly into Unix environments and their usual structure and behavior.

XZ Utils
Original author(s)Lasse Collin
Developer(s)The Tukaani Project
Stable release
5.4.6  / 26 January 2024 (26 January 2024)
Repository
Written inC
Operating systemCross-platform
TypeData compression
LicensePublic domain. (but see details in Development and adoption)
Websitetukaani.org/xz/
.xz
Filename extension
.xz
Internet media type
application/x-xz
Magic numberFD 37 7A 58 5A 00
Developed byLasse Collin
Igor Pavlov
Initial releaseJanuary 14, 2009 (2009-01-14)
Latest release
1.1.0
December 11, 2022 (2022-12-11)
Type of formatData compression
Open format?Yes
Free format?Yes
Websitetukaani.org/xz/xz-file-format.txt
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