gron binary package in Ubuntu Focal amd64

 gron transforms JSON into discrete assignments to make it easier to grep for
 what you want and see the absolute 'path' to it. gron can read JSON from a
 local file, over the network, or directly from STDIN.
 .
 gron eases the exploration of APIs that return large blobs of JSON but have
 terrible documentation.
 .
 gron can work backwards too, enabling you to turn your filtered data back
 into JSON.

Source package