I'm not sure if it's because they are demo versions (and my experiences echoes esrauch's), but every rich text editor you listed except YUI Editor actually does

I'm not sure if it's because they are demo versions (and my experiences echoes esrauch's), but every rich text editor you listed except YUI Editor actually does _not_ map the Tab key to insert a tabstop or spaces. [1]: http://ckeditor.com/demo http://ckeditor.com/demo [2]: http://www.tinymce.com/tryit/basic.php http://www.tinymce.com/tryit/basic.php [3]: http://try.sencha.com/extjs/4.1.1/docs/Ext.form.field.HtmlEditor.2/ http://try.sencha.com/extjs/4.1.1/docs/Ext.form.field.HtmlEd...