v1.0 [Mar 16, 2013] ☂ Fixed a blocking crash affecting only OS X Lion users☂ Fixed a bug making some autocompletion changes not being saved☂ Fixed some UX problems in the key/value edition text fields♥ New Mac App Store screenshots!
Capture, inspect, and manipulate HTTP(s) requests and responses.
Debug, test and build with HTTP on major platforms.
This app allows you to view HTTP request and response header.
Free Hylafax desktop client with everything you are looking for!
Lets you test and describe the APIs you build or consume.