UPX is a free, portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks for most of the formats supported, because of in-place decompression.
UPX is copyrighted software distributed under the terms of the GNU General Public License, with special exceptions granting the free usage for commercial programs as stated in the UPX License Agreement.
UPX uses the NRV compression library for compression services. A compatible but somewhat less efficient OpenSource implementation is available through the UCL compression library.
UPX aims to be Commercial Quality Freeware.
Download alternate UPX solution
Look at the free or trial alternatives and similar apps to UPX software by the tags. It's possible also to find substitutes for the most popular titles in the Operating System Utils category.
Predicted future versions and notices:
The doDownload.com constantly monitors the update of all programs, including information from the UPX 3.09 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 3.10 version with further advanced features, and soon you will be informed. Equally important 4.0 upgrades of the program we will continue to monitor. Full UPX description has been compared with the overall software database and our algorithm has found the following applications (are showed below).
(0.33MB, Extension: ZIP)