[michaelw]

I use http://plnkr.co and apart from the outrageous amounts of memory it can consume it's pretty good.

Features I like about Plunker: - Multiple files - Great code editor (ACE) - Streaming collaboration mode (so others can follow along) - Versioning

Features I want: - Test endpoints (echo and/or redirect to a resource would be fine) - Github integration: able to save and load assets to and from github - Add Javascript librarie references from CDN (jsbin does this best) - Unit test support (some do this but it could be better) - Easily self-hosted for use on an offline laptop - Mobile previews - Better search (find me all the fiddles/plunks that include calls to angular.extend)

OK, I want these things to turn into lightweight IDEs and REPLs.