How can I check what servers / services are still running in the background after testing a website locally?

I’ve created several websites locally in AG and I’m testing them. They all run on localhost:3xxx or something similar. I’m wondering if there’s a way to check what services are still runnin gin the background, as I’ve spun up loads and they’re all still running. There isn’t a kind of kill switch or end button in AG to end a session of testing when I’m done.

I’d get more comfort from knowing I can check a definitive list of stuff I’ve spooled up and that can then be terminated one by one, or en mass, after testing.

Not directly an AG question I guess, as this is applicable to all types of programming situations I suppose. Any help appreciated.