Welcome to the 7-Zip Home!

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

7-Zip is free software distributed under the GNU LGPL.

Download links redirect to download pages on SourceForge.net

You can register 7-Zip to support further development.

The main features of 7-Zip:

• High compression ratio in new 7z format with LZMA compression
• 7-Zip is free software distributed under the GNU LGPL
• Supported formats:
  • Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
  • Unpacking only: RAR, CAB, ARJ, LZH, CHM, Z, 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 60 languages

7-Zip works in Windows 98/ME/NT/2000/XP. There is port of command line version for Linux/Unix.

7-Zip is a free software distributed under the GNU Lesser General Public License.

On 7-Zip's Source Forge Page you can find forum, bugs report and feature request systems.

Compression ratio

We compared 7-Zip with some of the leading archivers.

FILE SETS: Mozilla Firefox 1.0.7 for Windows and Google Earth 3.0.0616 for Windows after full installation.

Compression ratio results are very dependent upon the data used for the tests. Usually 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.

Roadmap

7-Zip 5.*:

1. New compression methods for multimedia data
2. Recovery features