title: Html 5 wysiwyg designer
body: <p>I am looking for wysiwyg designer that creates applications in html 5 (based on any major JavaScript library like JQueryUI or other).</p>
  
  <p>So far, the only thing I found is Ext Designer:
  <a href="http://www.sencha.com/products/designer/" rel="nofollow noreferrer">http://www.sencha.com/products/designer/</a>
  but it is still in very early stage and with serious limitations (custom components can not be  added to toolbox for example). </p>
  
  <p>Any alternatives?</p>