Maybe try something like http://jsonviewer.stack.hu/ or an equivalent?
This is something that is important to our business as well. Any information would be appreciated.
We have a slightly different, but related concern. When Asana has major outages (like right now), we are dead in the water, as we rely heavily on Asana. With some kind of off-line access option, we could kill two birds with one stone: protect against temporary outages as well as against major nuke strike-type issues.