title: How can I implement html input form without backend
body: <p>I want to implement a contact form in my site, similar to this, but simpler. (I only need email and content inputs)
  <a href="http://www.squarespace.com/contact/" rel="nofollow">http://www.squarespace.com/contact/</a></p>
  
  <p>The problem is that I have no backend support. (just some static html pages)</p>
  
  <p>Question: How can I implement my contact form in static html pages?</p>
  
  <p>Possible solution:
  I know there are 3rd party tools that allow you to embed their js in your page and they will persist your data on their server. I once came across one but forget its name... Could you guys suggest one, or provide better solution?</p>