JCE is an enhanced Joomla editor that allows you to perform certain day to day web development functions quickly and easily, all from one interface. Image uploading, link creation / modification and much more are all bundled into the editor.
You can also format all of your copy within Joomla articles and modules in an interface similar to most familiar office tools available today. JCE is very customizable to your environment and features some advanced code editing options for more advanced Joomla coders.
JCE is a free extension, and is available for versions 1.5, 1.7 and 2.5.
The JCK Editor is quickly gaining popularity among the Joomla world. It also features basic office type functionality, along with HTML editing and image management. The layout is a bit different from JCE, which some people prefer.
JCK Editor relies on a strong set of plugins to help customize the Joomla editing environment. JCK Editor also features some newer HTML 5 editing functions.
JCK Editor is available for free download, but there are also three levels of membership that provide support and access to premium components. Memberships start at €22.50 for six months.