Although you can't reliably handle arbitrary JSON, they're not ipso facto incompatible formats; the fact that you can run a CSV-to-JSON is proof. (If you have

Although you can't reliably handle arbitrary JSON, they're not ipso facto incompatible formats; the fact that you can run a CSV-to-JSON is proof. (If you have a tool that operates on the kind of data that CSV is used for, then you can, of course, implement JSON support in the same tool at least to the extent that it is able to handle any JSON of the form that a CSV-to-JSON converter would produce...)