UPX (Ultimate Packer for eXecutables) is a powerful command line tool designed to reduce the size of various executable file formats. It offers a superior compression ratio compared to the Zip format and boasts impressive decompression speeds, achieving 10 MB per second even on older hardware like the Pentium 133. UPX is highly versatile, being both portable and multi-platform, making it compatible with nearly any device or operating system. Supported formats include atari/tos, djgpp2/coff, dos/com, dos/exe, dos/sys, linux386, rtm32/pe, tmt/adam, watcom/le, and win32/pe. Optimize your executables with UPX for efficient storage and faster performance.

I really enjoy using UPX! It's easy to navigate, and I love the community tips. The only thing I wish is for a better offline mode for traveling out of service areas. Overall, a solid app.