7-Zip

7-Zip Portable brings superior compression technology to your pocket. Developed by Igor Pavlov, this portable variant emphasizes maximum compression efficiency in a lightweight, installation-free package. The software supports widespread formats like ZIP and RAR alongside its proprietary high-performance 7z format. Completely free and open-source, it operates directly from USB drives or external storage, providing instant access to robust compression capabilities wherever you work. Ideal for technicians, students, and mobile professionals requiring reliable archiving tools without system modifications.