What AI says about p7zip

p7zip is a POSIX port of the 7za.exe command-line archiver for Unix-like systems (and MacOS, BeOS, Amiga), delivering the high compression ratio of 7-zip. J7Zip is a Java port of 7zr.exe, enabling 7-zip-like functionality in Java. The site also offers a Java LZMA SDK port of the LZMA encoder/decoder and provides downloadable sources, binaries, and various unofficial packages and forums.