jsfiddle
jsfiddle is a JavaScript prototyping environment.
I came across jsfiddle when I was researching code for a timed modal.
What jsfiddle say about their history:
JSFiddle started as a little proof-of-concept app in 2009 by Piotr. Back then it wasn't called that, instead it was called MooShell,
and it was made for the MooTools community exclusively – the only available framework was in fact MooTools.
Instantly, after showing his work to to the community, Oskar joined the project as interface and front-end developer.
Shortly after, MooShell received its first redesign.
In 2010, a decision was made to make the platform available to every developer, of every framework, so JSFiddle was born,
out of MooShell's source code.
