FUPX

What is FUPX?

The Free UPX application provides a comprehensive graphical interface for the UPX (Ultimate Packer for eXecutables) compression tool, granting users intuitive access to all documented and undocumented UPX parameters without the need for command-line usage. This program offers the ability to compress a wide range of executable files, including Portable Executable (PE) files commonly used on Microsoft Windows systems, such as EXE, DLL, OCX, and CPL files, as well as ELF executables utilized on Unix, Linux, Solaris, FreeBSD, and other operating systems. Additionally, the application supports the compression of ARM executables. The compressed files remain fully executable, allowing them to be used in the same manner as the original files. While Free UPX can pack 32-bit and 64-bit Windows executable files produced according to the Microsoft Portable Executable and COFF Specification, support for 64-bit files is currently considered experimental. It is important to note that the application does not support .NET executables

Highlights

• Graphical interface for the UPX compression tool, providing easy access to all documented and undocumented parameters
• Supports compression of a variety of executable file formats, including PE (EXE, DLL, OCX, CPL) and ELF executables
• Ability to compress ARM executables
• Maintains executability of compressed files
• Supports 32-bit and 64-bit Windows executable files (with experimental 64-bit support)
• Does not support .NET executables