WYSIWYG is an acronym for What You See Is What You Get, users can edit and format what they typed from the textarea and view something very similar to the end result. TinyMCE is a platform independent web based Javascript HTML WYSIWYG editor control released by Moxiecode Systems AB. It has the ability to convert HTML TEXTAREA fields or other HTML elements to editor instances. TinyMCE is very easy to integrate into other Content Management Systems.

Requirements: Mozilla, MSIE, FireFox, Opera and Safari
Demo: http://tinymce.moxiecode.com/example_full.php?example=true
License: LGPL License