UPX homepage: the Ultimate Packer for eXecutables

Giandomenico Di Salvatore

Redis

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UPX is a high-performance, open-source executable packer that significantly reduces the size of programs and DLLs by 50-70%. It achieves excellent compression ratios, fast decompression, and adds no memory overhead. Compatible with various formats including Windows, macOS, and Linux executables, UPX is portable and extendable, making it a versatile tool for reducing disk space, network load times, and distribution costs.

UPX: the Ultimate Packer for eXecutables