aynHTML is an open source wysiwyg HTML editor for IE 5.5+ and above. The editor features: html code view and syntax coloring, support for linked and internal stylesheets, image upload, loading and saving content through html or xml, developer api for customizing appearance and behaviour.
Indite is an extension to HtmlArea.
Indite validates content as the user types. This ensures that the output is semantically clean, but still allows the user full preview of the final result. Indite is mainly a JavaScript (client-side) application, but comes with a PHP class that encapsulates and simplifies the use of it.
