For reading and editing plain text you only need a text editor, for reading and editing JSON you&#x27;ll need a JSON parser (yes, you can do it manually, but non-tech people won&#x27;t) and a JSON renderer, which means an app with a new interface built for this. Since the JSON format has a schema, the app must know about this schema (so it can display a text area instead of a normal text input in the JSON field corresponding to the body of the note), which means it must be your app and yours only, which means the JSON files saved with your app are unusable elsewhere.<p>Please consider supporting plain text.