PHPDevel Wysiwyg HTML Editor is a free easy-to-use wysiwyg editor that you can use on your websites or integrate into your web applications. Adding the editor to an HTML form is as easy as adding textarea tag. If the code for textarea tag is: [textarea name="message"]Default text[/textarea], then the replacement code for wysiwyg editor would be: [?php echo wysiwyg('wysiwyg_id', 'message', 'Default text'); ?].