Online Json Editor

[The_Beast]

Not sure if this will help, as I am brand new to this json format. (I know nothing), But I will be reading a little.

There is an online json editor found here:

https://jsoneditoronline.org/

And documentation on it here :

https://jsoneditoronline.org/doc/index.html

[Shin Noir]

Another way to go is:
https://jsonlint.com/

Paste your json there, it'll report line numbers.