What are the best tools for testing web services with REST protocol and JSON data format? [closed]

I am new to testing of REST web services with JSON data format.

I tried SOUPUI, but unfortunately doesn't support JSON request.

I am now using the Chrome plugin for my tests, but I think it's not appropriate for test automation of these type of applications.

Does anybody know which tools are OK for this purpose?

Which tool is used for web service testing?

HttpMaster is a web service tool that exclusively tests REST web services. It is utilized to test behavior of REST APIs and verify data output in formats including XML, JSON and HTML. HttpMaster is a great choice for simulating client activity and response behavior of an API application.

We're using RestClient for testing our Rest/JSON WebServices. It's very handy and easy to use