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pixz vs Tarlz: catalog facts
pixz	Tarlz
Free Free and open source.	Free Free software.
macOS, Linux, Command line	Linux, Command line
Compresses in parallel across processor cores Indexed blocks allow random access into tar.xz archives	Parallel compression and decompression Optional recovery record, an alternative to RAR's
Command line only, with no graphical interface Usually built from source	Command-line only Works with the lzip format only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
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 October 1, 2026

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