https://code.hackerearth.com/ Basically, a compiling dumb terminal.
Oh this is cool. Run and execute code from a bunch of different languages. No logging in to anything . No creating accounts. Just type or paste code in, run it, see what it does.
I’ve been doing this the long way for a while, downloading compilers just to try out a few things – and I didn’t feel like joining the sites for developers.
It’s the site used for coding competitions too.