HttpMaster also supports definition of dynamic parameters which can be be used to simulate variations of input data or to create global values for reuse across multiple requests. HttpMaster project (hmpr file) exposes a large number of options to fine tune generated web requests, for example, to specify http method, values of http headers, global URL and query string values, content types, request encoding, and many more. All these core features, along with many other options, give HttpMaster capabilities for thorough HTTP testing and debugging. HttpMaster can display and validate the most common REST formats XML, JSON, and HTML and also supports powerful dynamic parameters, request validation, and many other properties. HttpMaster is a debugging and testing tool for various HTTP applications and services.