The Free UPX application was designed to be 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.

The Free UPX interface is very simple and user-friendly. To compress executable files, just drag & drop them into main window, select proper profile from list, and click the COMPRESS button.

Here are some key features of "Free UPX":

· Compression and decompression executable files (EXE, DLL, OCX, BPL, CPL, SYS, AX, ACM, DRV, TLB and other).
· Easy acces to all UPX command-line parameters.
· Displaying detailed informations about compressed files: original file size, compression ratio, UPX version, compression level and other.
· Predefined UPX profiles for beginners. Advanced users can define custom profiles.
· Don't need any installation. Just extract ZIP archive and click fupx.exe file.
· Portability. This program can be run from portable devices. All settings are written to INI file.
· Shell integration (optional).

Requirements:

· UPX 3 or higher (included in program dir)

What's New in This Release: [ read full changelog ]

· New version of the UPX (3.08w), minor modifications to source code related to the program adjustment to support the new version of UPX.

Download here