7Zip - File Manager
7Zip operates either as a command line program or with a graphical user interface. It also features integration with the Windows shell environment. 7-Zip is free software, developed by Igor Pavlov and distributed under the GNU LGPL license. In the form of p7-Zip , 7-Zip has been ported for use on Unix-like systems such as Linux and FreeBSD. It is a competitor to the market-leading WinZip and WinRAR programs, both of which are closed source.