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 known for its high compression ratio and support for a wide range of file formats, making it suitable for advanced users needing powerful features. In contrast, B1 Free Archiver offers a more user-friendly experience with cloud storage integration, making it ideal for casual users.