Re: codepen || jsfiddle || jsbin

[Chris Coyier]

Just to address some of the “Cons” in CodePen … =)

> No way to turn off specific code windows

You can’t turn them off, but you can maximize any of the editors :: http://blog.codepen.io/documentation/features/full-screen-editing/

> No way to tidy up the code

You can. Just select all the code and press SHIFT + TAB

> No code checker (JSHint)

There is! Press Command-Shift-7 on Mac or Control-Shift-7 on PC

> Not easy to test the code in different versions of a library.

You can link up any JS resource you want though. http://blog.codepen.io/documentation/features/adding-external-resources/ But the dropdown menu only allows you to link to the latest copy.

> No way to disable the “update as you type coding”

Specifically for JavaScript, you can :: http://blog.codepen.io/2013/04/04/auto-run-in-javascript-now-optional/