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p7zip vs bsdtar (libarchive): catalog facts
p7zip	bsdtar (libarchive)
Free Free and open source.	Free Free and open source with no paid tier.
macOS, Linux, Command line	Windows, 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	One tool reads many formats, including zip, rar and ISO Automatic format and compression detection
Command-line only, no bundled graphical interface Development has slowed compared to the original Windows 7-Zip project	Writes fewer formats than it reads; rar is read-only Command-line only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: BSD-2-Clause
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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