UPX is an open-source executable packer that compresses executable files and reduces their size while maintaining their ability to run normally when executed.

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An open-source, free protector for .NET applications

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Crinkler

Crinkler is an executable file compressor (or rather, a compressing linker) for compressing small 32-bit Windows demoscene executables. As of 2026, it is the most widely used tool for compressing 1k/4k/8k intros.

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Last commit2 months ago

zELF

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