7-Zip is a free software/open source file archiver designed originally for Microsoft Windows. 7-Zip operates primarily with the 7z archive format, as well as being able to read and write to several other archive formats. In operation a user can use the command line, graphical user interface or Windows shell integration. 7-Zip began in 2000 and is actively developed by Igor Pavlov. It is related to a cross-platform port, p7zip.
Unlike WinZip and WinRAR programs, which are distributed under proprietary licenses, 7-Zip is distributed under the GNU Lesser General Public License. 7-Zip was the winner of the SourceForge.net 2007 community choice awards for "Technical Design" and for "Best Project"
Developed by Igor Pavlov
Initial release 2000
Stable release 4.64 (03 January 2009; 9 days ago
Preview release none (n/a)
Written in C++, C
OS Microsoft Windows
Available in 69 languages, including Brazilian Portuguese, Czech, English, French, German, Italian, Japanese, Simplified Chinese and Spanish
Type File archiver
License GNU Lesser General Public License
GNU Lesser General Public License with unRAR restriction