7Zip is an open source archiving utility currently supporting only Windows platform. It fully supports 7z, ZIP, GZIP, BZIP2 and TAR formats. Developed by Igor Pavlov
License: Open Source
7-Zip is a user-friendly GUI-based compression tool primarily for Windows, making it ideal for casual users. In contrast, p7zip is a command-line version that offers cross-platform support, making it better suited for advanced users and server environments.