CoderPad is really, really good. I've interviewed using a bunch of alternatives, and CoderPad is far and away the only one that works reliably all the time. It always cheers me up when a company tells me they're using it, because I know it won't lag, the vi keybindings will work, the built-in terminal will work, there won't be weird interface glitches, every language I need will be there, etc.
This sounds hyperbolic, but I've never wanted a feature during an interview and found CoderPad to lack it.
This sounds hyperbolic, but I've never wanted a feature during an interview and found CoderPad to lack it.