Compare software

pixz vs pigz: catalog facts
pixz	pigz
Free Free and open source.	Free Free and open source with no paid tier.
macOS, Linux, Command line	Linux, Command line
Compresses in parallel across processor cores Indexed blocks allow random access into tar.xz archives	Uses all CPU cores when compressing Output is standard gzip format
Command line only, with no graphical interface Usually built from source	Decompression gains little from multiple cores Distributed as source code; you may need to compile it
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Zlib
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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