Description
UPX is an advanced executable file compressor. UPX will typically reduce the file size of programs and DLLs by around 50%-70%, thus reducing disk space, network load times, download times and other distribution and storage costs. Programs and libraries compressed by UPX are completely self-contained and run exactly as before, with no runtime or memory penalty for most of the supported formats.…
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UPX FAQ
What is UPX?
UPX is an advanced executable file compressor. UPX will typically reduce the file size of programs and DLLs by around 50%-70%, thus reducing disk space, network load times, download times and other distribution and storage costs. Programs and libraries compressed by UPX are completely self-contained and run exactly as before, with no runtime or memory penalty for most of the supported formats.
Is UPX free?
Yes. UPX is free to use.
Do I need to download UPX?
No. UPX runs in your browser at upx.github.io, so there's nothing to install.
Who makes UPX?
UPX is made by UPX.
What are the best UPX alternatives?
Popular alternatives to UPX include OpenVPN, Portmaster and Nicotine Plus. See all UPX alternatives