JSON:API Node Preview Tab
This module adds a tab to nodes allowing easy preview of the node's JSON:API structure.
Usage
Enable the module and configure the "Access JSON:API preview tab" permission for any roles that should have access to view the tab.
You will now see the JSON:API tab when viewing a node.
Note
Firefox will try to send the file for download, you can stop this by installing the following addon:
You can also imporve the display in the JSON data in other browser using addons