About

7-Zip ZS is an open-source file compression and archiving utility, developed in Germany and available under the LGPL-2.1 license. It significantly enhances the original 7-Zip by integrating support for advanced compression algorithms such as Zstandard, Brotli, Lz4, Lz5, and Lizard, in addition to its existing capabilities for bzip, bz2, lzma, and 7-Zip formats. This lightweight, privacy-focused tool operates on Windows, offering features like Windows Explorer Extension, a command-line interface, offline functionality, and support for various archive types including tar, RAR, and Zip, complete with AES encryption. Users appreciate it as an 'improved version of 7-Zip with extra features and compression codecs' and a 'useful fork' for its expanded codec support, though some note it's not a direct drop-in replacement for 7-Zip due to altered default settings. The project is actively maintained on GitHub.