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p7zip vs XZ Utils: catalog facts
p7zip	XZ Utils
Free Free and open source.	Free The software is free under its open-source licence. Hosting, hardware and external…
macOS, Linux, Command line	Windows, macOS, Linux, Command line
Brings 7-Zip's strong compression ratios to Linux and macOS from the command line Widely bundled in Linux distributions, so it's readily available	LZMA2 compression gives some of the best ratios available for general-purpose data, and the tools ship on effectively…
Command-line only, no bundled graphical interface Development has slowed compared to the original Windows 7-Zip project	Compression is slow and memory-hungry at high levels, and the 2024 backdoor incident in the upstream release tarballs…
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: 0BSD
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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