Compare software

LZ4 vs pixz: catalog facts
LZ4	pixz
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Very fast compression and decompression Scales across CPU cores	Compresses in parallel across processor cores Indexed blocks allow random access into tar.xz archives
Lower compression ratio than zstd or xz Compresses single files or streams, not a full archiver	Command line only, with no graphical interface Usually built from source
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause (library), GPL-2.0 (command-line tool)	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.