John Critchley's

Handy FIX Protocol translator

Paste a fix message into the space below and hit the button. The first tag must be a BeginString 8 in order for the right spec version to be used. The seperators can be control-A, "|" or "^A". You can paste a new message in that and parse it without re-loading the page. I am still working on this – use it at your own risk!