Saturday, October 6, 2012

7zip free file archiver compressor

7zip free file archiver compressor:

[caption id="attachment_323" align="aligncenter" width="352"] 7zip free file archiver[/caption]

7-Zip is a file archiver with a high compression ratio. 7-Zip is open source software. Most of the source code is under the GNU LGPLlicense. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions.

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: 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.
  • 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 79 languages

7-Zip works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix. 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.

>> 7zip 9.20 stable version 32-bit x86 <<

>> 7zip 9.20 stable version 64-bit x64 <<

>> 7-Zip 9.25 alpha <<

>> 7-Zip 9.29 alpha <<

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