Free UPX Download

Free UPX is an advanced graphical interface for the UPX (Ultimate Packer for eXecutables). It allows you to compress (and decompress) files produced according to Microsoft Portable Executable and COFF Specification (EXE, DLL, OCX, BPL, and CPL). Free UPX offers easy access to all documented and undocumented UPX parameters without the need for command line usage.