XZ Utils is free general-purpose data compression software with a high compression ratio https://tukaani.org/xz/
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Jia Tan 86a30b0255 Tests: Add more tests into test_check. 2 weeks ago
build-aux Build: Fix a CR+LF problem when running autoreconf -fi on OS/2. 7 years ago
cmake CMake: Fix compatibility with CMake 3.13. 2 years ago
debug Avoid variable-length arrays in the debug programs. 8 years ago
doc Typo fixes from fossies.org. 2 years ago
dos DOS: Update dos/Makefile for DJGPP 2.05. 2 years ago
extra extra/scanlzma: Fix compiler warnings. 4 years ago
lib Put the interesting parts of XZ Utils into the public domain. 13 years ago
m4 Build: Update m4/ax_pthread.m4 from Autoconf Archive (again). 2 years ago
macosx macosx: separate liblzma package 9 years ago
po Update German translation, mostly wrt orthography 7 years ago
po4a Translations: Fix po4a failure with the French man page translations. 4 months ago
src liblzma: Silence a warning. 1 month ago
tests Tests: Add more tests into test_check. 2 weeks ago
windows spelling 3 years ago
.gitignore Added vli tests to .gitignore 2 weeks ago
AUTHORS Fix a few typos and add some missing articles in some documents. 10 years ago
CMakeLists.txt CMake: Keep compatible with Windows 95 for 32-bit build. 5 months ago
COPYING Update the home page URLs to HTTPS. 5 years ago
COPYING.GPLv2 Update the copies of GPLv2 and LGPLv2.1 from gnu.org. 12 years ago
COPYING.GPLv3 Imported to git. 15 years ago
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Doxyfile.in spelling 3 years ago
INSTALL Update INSTALL for Windows and DOS and add preliminary info for z/OS. 2 years ago
INSTALL.generic Update INSTALL.generic from Automake 1.16.1. 2 years ago
Makefile.am Typo fixes from fossies.org. 2 years ago
NEWS Add NEWS for 5.3.2alpha. 8 months ago
PACKAGERS Update docs. 12 years ago
README README: Update outdated sections. 2 years ago
THANKS Update THANKS. 3 months ago
TODO Update TODO. 8 years ago
autogen.sh Build: Add support for --no-po4a option to autogen.sh. 2 years ago
configure.ac Build: Enable Automake's parallel test harness. 1 month ago


XZ Utils

0. Overview
1. Documentation
1.1. Overall documentation
1.2. Documentation for command-line tools
1.3. Documentation for liblzma
2. Version numbering
3. Reporting bugs
4. Translations
5. Other implementations of the .xz format
6. Contact information

0. Overview

XZ Utils provide a general-purpose data-compression library plus
command-line tools. The native file format is the .xz format, but
also the legacy .lzma format is supported. The .xz format supports
multiple compression algorithms, which are called "filters" in the
context of XZ Utils. The primary filter is currently LZMA2. With
typical files, XZ Utils create about 30 % smaller files than gzip.

To ease adapting support for the .xz format into existing applications
and scripts, the API of liblzma is somewhat similar to the API of the
popular zlib library. For the same reason, the command-line tool xz
has a command-line syntax simil