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7-Zip-zstd vs NanaZip: catalog facts
7-Zip-zstd	NanaZip
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under the MIT licence, including the Microsoft Store listing.
Windows, Linux	Windows
It keeps the familiar 7-Zip interface and Explorer menu while adding modern codecs, and it can be installed…	Appears in the Windows 11 right-click menu instead of the legacy submenu 7-Zip's formats and compression, so nothing is lost in the move
Archives that use the added codecs will not open in stock 7-Zip, so they are not safe to…	Windows 10 and 11 only MSIX packaging makes some scripted or portable deployments awkward
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: MIT
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 21, 2026

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