ACE: The new code editor

Ace is a separate code editor written in Javascript which aims to extend the features, ease of use and performance of native editors like TextMate or Eclipse.

This tool —designed for web developers and successor of the Mozilla project Skywriter— can work with documents containing more than 100,000 lines of code, highlight the syntax on the selected language and support JavaScript, HTML, CSS, XML, Python, PHP, Java, Ruby, C + +, CoffeeScript.