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, CPL and other). It offers easy access to all documented and undocumented UPX parameters without the need for command line usage.
Version 2.0 (26 May 2016) Major modifications to the user interface. Displaying additional information about executable files. The ability to filter files based on multiple criteria. Changed toolbar. New icons. New file list control with many additional features (sorting, row and column moving...).