Another alternative that I have had good experience with is Mountebank - http://www.mbtest.org/ http://www.mbtest.org/ It doesn't have a nice GUI like this, bu

Another alternative that I have had good experience with is Mountebank - http://www.mbtest.org/ http://www.mbtest.org/ It doesn't have a nice GUI like this, but it is extremely flexible in the information you can match on for returning your mocked responses.