Ask HN: What free tools do you use every day that you couldn't live without?
I’ve been trying to streamline my workflow and cut unnecessary expenses. I’m curious - what are the truly indispensable free tools you use daily?
But I suppose (unless you're counting Linux itself) my answer would have to be the gcc toolset. But if it vanished tomorrow, I'd figure out an alternative, so it's not really a "couldn't live without" thing.