Plzip is a massively parallel (multi-threaded), lossless data compressor
based on the LZMA algorithm, with very safe integrity checking and a
user interface similar to the one of gzip or bzip2. Plzip uses the lzip
file format; the files produced by plzip are fully compatible with
lzip-1.4 or newer, and can be rescued with
Plzip is intended for faster compression/decompression of big files on
multiprocessor machines, which makes it specially well suited for
distribution of big software files and large scale data archiving. On
files big enough (several GB), plzip can use hundreds of processors.
Here you can find some tests showing the
performance of plzip on a multiprocessor machine.
Learn more about lzip in the Lzip Home Page.
The manual is available in the info system of the GNU
Operating System. Use info to access the top level info
page. Use info plzip to access the plzip section directly.
An online manual for plzip can be found
The latest released version of plzip can be found
You may also subscribe to
and receive an email every time a new version is released.
How to Get Help
For general discussion of bugs in plzip the mailing list
is the most appropriate forum. Please send messages as plain text.
Please do not send messages encoded as HTML nor encoded as base64 MIME
nor included as multiple formats. Please include a descriptive subject
line. If all of the subject are "bug in plzip" it is impossible to
An archive of the bug report mailing list is available at
How to Help
To contact the author, either to report a bug or to contribute fixes or
improvements, send mail to
Please send messages as plain text. If posting patches they should be in
unified diff format against the latest version. They should include a
See also the
project page at Savannah.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU
General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.
Copyright © 2013 Antonio Diaz Diaz
Lzip logo Copyright © 2013 Sonia Diaz Pacheco
You are free to copy, modify and distribute all or part of this article