editor
markItUp
markItUp! is a JavaScript plugin built on the jQuery library. It allows you to turn any textarea into a markup editor.
Ajax image editor - project hosted on Google Code
This is a browser-based image editor that was originally developed in 2004 for a content management system. In December 2006, the code was cleaned up and the PHP version was released under LGPL on my ...
Jeditable
With few lines of JavaScript code Jeditable allows you to click and edit the content of different xhtml elements.
In-place editing with contentEditable
Plugin that allows you to convert parts of the page into editable areas, just click on them and when you finish editing click outside.
NicEdit - WYSIWYG Content Editor, Inline Rich Text Application
NicEdit is a free inline wysiwg html editor you can easily add to your site in seconds!