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7-Zip is a open source file archiver with a high compression ratio. The program supports 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, Z. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions. Check license information here: 7-Zip license.

You can use 7-Zip on any computer, including a computer in a commercial organization. You don’t need to register or pay for 7-Zip.

The main features of 7-Zip are:
High compression ratio in new 7z format with LZMA compression
Compression ratio for ZIP and GZIP formats: 2-10 % better than the ratio provided by PKZip and WinZip
Strong AES-256 encryption in 7z and ZIP formats
Self-extracting capability for 7z format
Integration with Windows Shell
Powerful File Manager
Powerful command line version
Plugin for FAR Manager
Localizations for 74 languages

7-Zip 26.01 changelog:
Linux version of 7-Zip can use huge pages (2 MB pages). It can increase compression speed for 10% for 7z/xz/LZMA/LZMA2 compression.
new -spo[d|c|r] switch specifies the path generation mode for the output directory for archive extraction. The output directory path is generated from the path specified in the -o{dir_path} switch and the name of the archive being unpacked.
spod: for Linux/Posix/macOS: -o{dir_path} specifies the direct path to the output directory. The asterisk (*) character in {dir_path} will not be replaced by the archive name.
spoc: 7-Zip will concatenate the path specified in -o{dir_path} with the archive name to form the final path to the output directory.
spor: 7-Zip will replace asterisk (*) character in the path specified in the -o{dir_path} with the archive name. This is the default option.
some bugs were fixed.