One feature of JSFiddle I miss instantly is the ability to pull in a web framework via a dropdown. A reasonable counter-argument is that they're available as Go

One feature of JSFiddle I miss instantly is the ability to pull in a web framework via a dropdown. A reasonable counter-argument is that they're available as Google-hosted libraries[1], but you have to go hunt'm up yourself. [1]: https://developers.google.com/speed/libraries/