Most of the code is under the GNU LGPL license.

It also creates password-protected file zip files, as well as self-extracting zip files. You don’t need to register or pay for it. You can use 7-Zip on any computer, including a computer in a commercial and business organization. Most of the 7-Zip source code is under the GNU LGPL license the unRAR code, however, is under the GNU LGPL with an “unRAR restriction”, which states that developers are not permitted to use the code to reverse-engineer the RAR compression algorithm. The program can be used from a command-line interface as the command p7zip, or through a graphical user interface that also features shell integration. It uses its own 7z archive format but can read and write several other archive formats.

It is developed by Igor Pavlov and was first released in 1999. 7Zip Filehippo is an open-source and free file archiver Software, a utility feature used to place groups of files within a compressed folder known as “archives”.

Download 7zip for win 10