| Ultimate Packer for eXecutables (free version using UCL compression and not NRV) | |
| https://upx.github.io/ | |
| upx-4.2.3 | GPL-2+ UPX-exception |
| download~amd64 ~arm ~arm64 ~ppc ~ppc64 ~sparc ~x86 | gentoo |
| upx-4.1.0 | GPL-2+ UPX-exception |
| downloadamd64 ~arm ~arm64 ~ppc ~ppc64 ~sparc x86 | gentoo |