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7-Zip-zstd vs PeaZip: catalog facts
7-Zip-zstd	PeaZip
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under LGPLv3; a portable package that needs no installation is…
Windows, Linux	Windows, macOS, Linux
It keeps the familiar 7-Zip interface and Explorer menu while adding modern codecs, and it can be installed…	Works with 200+ archive types and variants and handles spanned archives Native application on Windows, Linux, macOS and BSD, with a portable package
Archives that use the added codecs will not open in stock 7-Zip, so they are not safe to…	The interface is busy compared with the plain 7-Zip window Creating RAR archives is not possible; RAR is read-only, as it is in other free tools
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: LGPL-3.0
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 20, 2026

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