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Free UPX Portable

advanced executable compression

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). Free UPX is freeware for personal and business use.

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Free UPX Portable works best with the Platform


ScreenshotIt features:

  • 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, compresson ratio, UPX version, compression level and other.
  • Predefined UPX profiles for beginners. Advanced users can define custom profiles.

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For help getting this app up and running, visit:

Helpful Tip: For app releases, we recommend using AppCompactor to shrink apps. It's pre-configured with the settings we recommend for official releases and automatically handles special files according to our recommendations.

Download Details

Free UPX is repackaged with permission from Pazera Software