Learn how to use Web services can be implemented using SOAP with SoapUI. Download here: http://sourceforge.net/projects/soapui/
SoapUI is the leading desktop application for functional testing, performance testing, security testing, compliance testing and surveillance testing as well as inspecting, invoking, monitoring, simulating and mocking of REST and SOAP based APIs.
With more than 8 million downloads SoapUI is the de-facto standard for API testing. SoapUI is an Open Source Project Sponsored by SmartBear Software.