XML tools
XML & Soap tools
Contents |
XML editor and viewer 
A nice and free tool to edit and view XML is XML Marker.
It offers plain text and tabular views using graphical trees.
It is a fairly small but powerful free utility which does not need to be installed, so starting from memorystick
or xcopy deployment along with your applications is easy.
You can find info and download link here
XML Marker website
SoapUI:Inspecting, invoking and testing WebServices (WSDL/REST) 
soapUI is a free and open source desktop application for
- inspecting Web Services
- invoking Web Services
- developing Web Services
- Web Services Simulation and Mocking
- Functional, Load and Compliance testing of Web Services
It is mainly aimed at developers and testers providing or consuming WSDL or REST based Web Services (Java, .net, etc).
Functional and Load Testing can be done both interactively in soapUI or within an automated build or integration process
using the soapUI command line tools.
Mock Web Services can easily be created for any WSDL and hosted from within soapUI or using the command-line MockService runner.
You can find info and download link here
SoapUI website