The ARK Editor (formally known as the JCK Editor) is an WYSIWYG editor designed to simplify your content creation. It incorporates a new technology called Inline Editing that allows its users to edit page elements directly without the need to use a special editing screen. For this reason it can transform Joomla sites and make them incredibly easy-to-use!
Its user familiar due to its modern Windows Metro like interface yet configurable enough to be used for enterprise developments. Allowing for customisation and shaping in virtually any direction. This could be from creating bespoke toolbars to adding functionality with new plugins, content templating and typography and with the setting up of user permissions and user folders.
It's licenced under the General Public License and aims to be a community resource that embodies the Joomla project and its values.