1)   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.

 2)   HTTP Analyzer 5.0.1
HTTP Analyzer is an utility that allows you to capture HTTP/HTTPS traffic in real-time. It displays a wide range of information, including Header,Timing, Content, Cookies, Query Strings, Post data, Request and Response Stream,redirection URLs and more

 3)   IE HTTP Analyzer 5.0.1
HTTP(s) Protocol Analyzer,integrates into the lower part of your IE and Firefox browser. It allows you to capture HTTP/HTTPS traffic in real-time. It doesn't change your Windows system files and no device drivers or proxies have to be installed.

 4)   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.

 5)   HTTP Sniffer and Analyzer 1.2
If you need a handily tool to capture and analyze all communications over the HTTP protocol then xIBL HTTP Sniffer and Analyzer is a program for you.