MinGW-w64 GCC for both x64 & x86 Windows!
http://mingw-w64.sourceforge.net/
opensource GPL
New: StressMyPC (Dec 10, 2025), Platform 30.1.3 (Nov 17, 2025)
1,400+ portable packages, 1.2 billion downloads
We're close to breaking even this year, please donate today
December 2025 Site Slowdown Being Addressed
MinGW-w64 GCC for both x64 & x86 Windows!
http://mingw-w64.sourceforge.net/
opensource GPL
It would be amazing to have Compiler as a Portable Application.
Thank You.
winlibs makes a portable GCC compiler as part of MinGW:
https://winlibs.com/#download-release
It's just a straight archive and requires no install at all.