1)   HTTP Debugger Pro 2.8
If you need to view and analyze all of the HTTP/HTTPS traffic between a web browser or any program that uses the HTTP/HTTPS protocol and the web server, then HTTP Debugger is the program for you.

 2)   HTTP Debugger SDK 1.0
HTTP Debugger SDK allows C++, Java, .NET, Visual Basic, Borland C++ Builder, Borland Delphi and other software developers to create their own HTTP protocol viewers and analyzers.

 3)   SoftX HTTP Debugger 4.2
SoftX HTTP Debugger allows you to view and analyze all communications between a web browser, or any other Internet related program, and the web server. View and analyze HTTP header and HTTP content of any HTTP request or response.