UPX
by Markus F.X.J. Oberhumer
A free, portable, extendable, high-performance executable packer for several different executable formats
UPX is a program that allows you to immediately package executable files, after which they will take up a minimum of space on your computer's hard drive, and at startup will be unpacked directly into the computer's memory.
The UPX program supports a large number of file formats, including COM, EXE and SYS.
UPX significantly reduces the space executable files occupy on your computer's hard drive.
Operating system: Windows 7 or later
Memory: Minimum 512MB RAM
Hard Disk: 50MB free space
CPU: 1 GHz or faster processor
Memory: Minimum 512MB RAM
Hard Disk: 50MB free space
CPU: 1 GHz or faster processor
PROS
Efficiently compresses executable files to save storage space.
Provides a simple, user-friendly interface.
Compatible with different system architectures and platforms.
Provides a simple, user-friendly interface.
Compatible with different system architectures and platforms.
CONS
Does not support all executable file formats.
Some antivirus programs falsely flag it.
May reduce software performance slightly.
Some antivirus programs falsely flag it.
May reduce software performance slightly.
UPX 2.4
(6.11 MB)
