macOS App Option:
If you're on a macOS system Power JSON Editor is a feature rich standalone JSON editor that has been around for many years, and receives regular updates. It does cost $9.99.
Interactive tree and value editor linked to raw code / text view
Drag-and-drop move, rearrange, and copy nodes
Drag and drop JSON data between ...
I can highly recommend JSONedit. It serves as both a JSON viewer and JSON editor.
It features text, tree, and list views.
It is portable software and is free of cost (freeware). It even features a dark theme/mode.
The only issue I've had with it is that it crashes for me when I open very large (hundreds of MBs) JSON files. I'm hoping the author has time ...