Gist is a great service on GitHub which serves up a copy-pasteable text boxes with full version control.
It's useful for sharing snippets of code around...
but what if you could run that code!
well, now you can! with GistRunner
just enter the gist id into the field, or copy-paste the url of the gist.
it'll download your gist and execute it on server!
it's pretty alpha, (wrote it all yesterday) so there is lots of room for improvement,
but when you just want to convince your friends that we should all go to base 12, by wipping up a quick base 12 times table.... you can!
base12 times table