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7-Zip is a file archiver with a high compression ratio. You can use 7-Zip on any computer, including a computer in a commercial organization. It's all free.

It supported the following formats:

  • Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM.
  • Unpacking only: ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z.

Key Features:

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




Note: This program is advertising supported and may offer
to install third party programs that are not required.
These may include a toolbar, changing your homepage,
default search engine or installing other party programs.
Please watch the installation carefully to opt out.