[philwelch]

> Most diff programs don't have what you describe.

That’s why pipes were invented.

> And in a lot of cases you don't have the easy ability to "do stuff" before running the input through a diffing algorithm.

Well, in that case you’re not going to be able to meaningfully compare two JSON payloads because neither order nor white space have any semantic meaning in JSON. I’m really curious what you’re talking about though, since if you’re working on the shell you can easily use jq to do as I describe.