upx

upx/upx

UPX - the Ultimate Packer for eXecutables

17.6K stars 1.5K forks 17.6K watchers C++ Other

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7 Open Issues Need Help Last updated: Jul 3, 2026

Open Issues Need Help

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New executable format: win64/arm64ec 10 days ago

enhancement help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++

New executable format: win64/arm64 10 days ago

enhancement help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++

UPX compressed arm64/amd64/x86_64 executable crashes on macOS Ventura 13.0 25 days ago

enhancement help wanted os:macOS

17.6K

UPX - the Ultimate Packer for eXecutables

C++

Missing exception class and message on 64bit builds when using madexcept. 3 months ago

enhancement help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++

DLL CantUnpackException 3 months ago

help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++

UPX 4.x 5.x produce Invalid decompressed PE images for certain kind of 32-bit .exe 4 months ago

help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++

Missing executable's info 7 months ago

help wanted os:Windows

17.6K

UPX - the Ultimate Packer for eXecutables

C++