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

• High compression ratio in 7z format with LZMA and LZMA2 compression

Supported formats:

• Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM

• Unpacking only: APFS, AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VHDX, VMDK, XAR and Z.

• For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 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 87 languages