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Just install something like tcc. It's seriously not worth messing around with an online compiling site if you're going to be compiling files on any sort of regular basis.
Comeau has an online C/C++ compiler, but it's mainly to evaluate their compiler.
or cygwin
I'd rather recommend to install cygwin, you'll get an unix-like environment, with gcc. Then setting up a Makefile - or even just a shell script - to be able to compile is not a big deal.
I'm learning C and yes, I am having trouble getting C to run in VS Code, skill issue. Until I sit down and just figure out the pathing problem, I'm just wondering if any of you know of some good cloud based compilers that I can use to just practice C in the meantime until I can get the compiler for VS Code fixed.