title: REST client utility
body: <p>I'm developing a REST API, and am looking for a simple graphic utility that will let me test the full set of REST verbs (GET, PUT, POST, and DELETE); GET is obviously not a problem, but I'd like something that can encapsulate the basic functionality of being able to specify a content body for PUT / POST, specify headers, etc.  I'm sure someone's done this sort of thing before, but I can't seem to find any references to a simple graphical bit of HTML / Javascript that will allow me to specify an endpoint, headers, body, etc. and execute a REST request.  Such a thing would be very useful in many environments.  Does anyone know of such a tool that's available without any licensing issues?</p>
  
  <p>Note: ideally, I'd like to find something that can be embedded in a web page, i.e. no browser add-ons.</p>