Check out Postman - https://chrome.google.com/webstore/detail/fdmmgilgnpjigdojojpjoooidkmcomcm/. This is a tool I have been working on over the past several months and lately from the feedback that I have been getting it's becoming quite useful for large REST projects while helping with basic REST endpoint testing.
The code for this is available on Github as well. https://github.com/a85/POSTMan-Chrome-Extension
