UPX - 5.1.0

Fri, 30 Jan 2026 22:09:28 -0400

High-performance executable packer

UPX is a free, portable, extendable, high-performance executable packer for several different executable formats.

* updated to v5.1.0
* updated to 5.0.2

Download upx.zip (3,417,060 bytes)