7-Zip is a file archiver with a high compression ratio.

The main features of 7-Zip:

• Highest compression ratio in new 7z format with LZMA compression
• 7-Zip is free software distributed under the GNU LGPL
• Supported formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB
• For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10 % better than ratio provided by PKZip and WinZip
• Self-extracting capability for 7z format
• Integration with Windows Shell
• Powerful File Manager
• Powerful command line version
• Plugin for FAR Manager
• Localizations for 47 languages
• works in DOS using HX Extender
• There is port of command line version for DOS, Linux/Unix.

What's New in version 4.58 Beta:

• Some speed optimizations.
• 7-Zip now can unpack .lzma archives.
• Unicode (UTF-8) support for filenames in .ZIP archives. Now there are 3 modes:
  1. Default mode: 7-Zip uses UTF-8, if the local code page doesn't contain required symbols.
  2. -mcu switch: 7-Zip uses UTF-8, if there are non-ASCII symbols.
  3. -mcl switch: 7-Zip uses local code page.
• Now it's possible to store file creation time in 7z and ZIP archives (-mtc switch).
• 7-Zip now can unpack multivolume RAR archives created with "old style volume names" scheme and names *.001, *.002, ...
• Now it's possible to use -mSW- and -mSW+ switches instead of -mSW=off and -mSW=on
• Some bugs were fixed.
• New localizations: Punjabi (Indian), Pashto.

Download the Stable version. 7-Zip 4.57.