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7-Zip is a file archiver featuring a high compression ratio to extract or create compressed files in multiple formats. 7-Zip is completely free, open source software with open source under the GNU LGPL license.

It has a straightforward and easy to navigate interface. The main toolbar contains its most used features, and several menus allow you to dig deeper within. For example, the extract button lets you quickly browse for or accept the default destination directory for your file, while the View menu contains a Folder History, and the Favorites menu allows you to save up to ten folders. It also integrates with the Windows Explorer menus, displaying archive files as folders and providing a toolbar with drag-and-drop functions. You can also alternate between a single or dual-pane view.

7-Zip features a high compression ratio in the 7z format with LZMA compression. It supports the packing and unpacking of 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM. And it can also unpack 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.

7-Zip has AES-256 encryption in 7z and ZIP formats, self-extracting capability for 7z format, integration with Windows Shell, a File Manager, a command line version and even features plug-ins.

There is a 32-bit or 64-bit installer available depending on your needs.

Version History for 7-Zip:

What's new
  • The speed for LZMA/LZMA2 compressing was increased by 3-10%,
    and there are minor changes in compression ratio.
  • Some bugs were fixed.
  • The bug in 7-Zip 18.02-18.05 was fixed: there was a memory leak in xz decoder.
  • 7-Zip 18.02-18.05 used only one CPU thread for bz2 archive creation.