JSON Diff tool

By storing the query in the URL it ends up being too long. I measure it at 3215 characters. This may be worth a read:

http://stackoverflow.com/questions/417142/what-is-the-maximu...

Seems like you could easily just store it in a cookie, or have a default value on the server side.

That being said, I think this looks really useful. It'd be great alongside the cli json tool.