Does anyone know of a website that can accept a TCP/IP socket connection and show data sent to it? There are many sites that can display HTTP transactions and many installable programs that can do this, but I haven't been able to find an online version.
I've used this online tool for socket testing earlier. Can you have a look at http://demos.kaazing.com/echo/?
Can it be on your local network? If so, you can check out the various example programs at Rosetta and run whatever language you are most comfortable with. Tweak it to the port of your choice, and perhaps instead of echoing, have it output the data to a file or local terminal if you want a better way to access the data.