Tool For Constructing HTTP Requests

Question

I'm looking for the best tool that allows me to construct my own HTTP requests. Like the Firefox add-on poster.

Any suggestions?

I'm looking at doing some security testing on web services.

Answer 1

Fiddler2 is the best tool I know of for that kind of work .. massive amount of features for scripting building requests, as well as storing sessions for later analysis.

Answer 2

cURL is a nice command-line tool.