: It displays all available web methods; you can select one, input parameters, and hit "Invoke" to see the real-time response.

: Simply provide a WSDL endpoint, and the tool fetches the definition to generate a .NET proxy on the fly.

Originally a popular project on Microsoft’s now-defunct CodePlex platform with over 100,000 downloads, WebServiceStudio is a GUI-based tool designed specifically for testing .NET web services. It allows you to:

: A version that includes fixes for ignoring certificate errors—ideal for development and testing environments. How to Use the Tool adnanmasood/WebServiceStudio - GitHub