software that listens to http posts

i'm debugging some hidden http posts on my website. can you refer a free ap开发者_运维问答plication that shows a console of the http posts happening on my PC? thanks!

The HttpFox plugin for Firefox works pretty well for this task. Firebug can also do it, along with a whole lot of other things.

Fiddler is exactly what you are looking for, if you are looking for a stand-alone program. If you want a Firefox plugin Tamper Data, or Live Headers are both good.

Also check out Tamper Data for Firefox.