How to best display the contents of a flat JSON file

I'm designing a web app that can import a custom JSON file. The file is completely flattened, meaning every value is only a single layer deep.

The user is importing data into the app. The data comes from an external app. The user must compare the imported data (that was fuzzy matched) with the data in the json to look for errors

The obvious way would be to simply display the text value of the JSON, but this isn't very user friendly.

I could also create a text box for every value in the JSON (and use the key as a label).

Or, is there some form of table that could help? It might become very long if it's only 2 columns wide.