The interface is nice and the tool is functional.
This tool could really be useful if you added those two options you mention in the description:
- to be able to import json.
- to work on nested structures.
But I guess it’s easier said than done…
Also I noticed that in the export, everything was converted to string (“true” ; “42” ; etc.) Maybe I missed something but if this is the expected behavior you should not write “it can be numbers, strings, booleans”.