Code Runner (2.0.1) Mac (OS X)+ Serial

Code Runner 2.0.1
Official Website

CodeRunner is the easiest way to write code on your Mac. You can run code in almost any language instantly, and you'll be surprised by the powerful set of features in such a lightweight and easy-to-use editor.

Please think about purchasing the app, if you enjoy it.
Seed as long as possible, don't forget to say thanks. ;)