Aloha editor was created with the goal to revolutionize the online editing experience. Being the only true HTML5 contentEditable solution allows us to provide inline editing that put us far ahead the competition.
The lack of an adopted specification for contentEditable in browsers and inconsistent implementations drive developers crazy. Aloha Editor wraps commandExec consistently across browsers and provides additional functionalities such as table editing, image handling, block handling.
Checkout how you can build a google docs like interface in 10 min.