HTTP Request sandbox online is a VERY simple tool that makes requests to external sources and outputs the response body & headers for you.
There is nothing complex or "special" about this service. It just makes testing your web services/sites much easier... since you won't need to build this little tool yourself to see the outputs in a readable format :)
Enjoy! I hope this takes a little bit of pain out of your day!
Request Maker was built by me La Resvolution Rouge, simply because I needed to do some POST testing, and I couldn't find any tool like this online... so I built one!