Something that has really helped me improve my workflow over the last year or so has been JS Bin. The ability to just test some small snippets of code without having to create a new file the leads to me ending up having a full desktop has really helped me out. And I have to admit, I’m really surprised at how many developers I’ve talked to that haven’t heard of it or any of the similar web apps out there. So what does JS Bin do for you and why do I love using it?
Everything thing you create has it’s own unique URL, so if you’re having a problem with some code, you can create a JS Bin for it and send it to someone to take a look at. A few times, I’ve had someone at work show me a problem they’re having, so I create a JS Bin and when I figure out a solution, I can just send them the URL and they can take a look at what I came up with. Plus, it has the feature of saving all your bins if you’re logged in, so you can always come back later and take another look.
There’s also Codepen but because it shows all your pens publicly unless you have the pro version, I feel it’s more for showing stuff off than for writing little tests. It is the best looking one, I’ll give it that.