: Unlike standard .zip files, which are natively supported by Windows and macOS, .7z files require a third-party tool like 7-Zip or WinZip .
: The .7z format generally offers a 30–70% better compression ratio than the standard .zip format. : Unlike standard
License. 7-Zip is free software with open source. The most of the code is under the GNU LGPL license. 7Z Reviews 2026: Details, Pricing, & Features | G2 : Unlike standard .zip files
: Users frequently mention the lack of a "dark mode" or a modern visual design. : Unlike standard