7-Zip 9.30 Alpha

7-Zip is a file archiver with one of the highest compression ratios.

Alternatively you can download the latest stable version of this software.

Features:

• 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

What's New:

• LZMA2 now is default compression method for .7z format.
• 7-Zip now can update WIM archives.
• 7-Zip File Manager now can move files to archives.
• 7-Zip File Manager now can calculate CRC-32, SHA-1 and SHA-256 checksums for files.
• The default encoding for TAR format now is UTF-8. You can use -mcp=1 switch for OEM encoding.
• Command line version:
  • new "rn" command to rename files in archive.
  • new -sdel switch to delete files after including to archive.
  • new -sns switch to store NTFS alternate streams (for WIM format only).
  • new -sni switch to store NT security information for files (for WIM format only).
  • new -stl switch to set archive timestamp from the most recently modified file.
• Speed optimizations for opening big archives and big disk folders.
• DMG support was improved
• Some bugs were fixed.
• New localization: Aragonese.