What this tool does
Spreadsheets need flat rows and columns; JSON is nested key-value data. This tool reads every object in your array, collects every field name it finds across all of them, and lays them out as CSV columns — filling in a blank where a particular object doesn't have that field.
Handling nested values
If a field's value is itself an object or array, it's written into the CSV cell as a JSON string rather than dropped, so you don't lose any data — you can flatten it further in your spreadsheet if needed.
Frequently asked questions
What happens if my JSON objects have different fields?
The tool collects every field name found across all objects and uses that combined list as the CSV columns. If a particular object is missing a field, that cell is left blank in the output row instead of breaking the conversion.
Can I convert nested JSON to CSV?
Yes, but nested objects or arrays are written into their cell as a JSON string rather than split into separate columns, since CSV itself has no concept of nesting. This keeps all your data intact for further flattening if you need it.
Does this work with a single JSON object, not just an array?
Yes — if you paste a single object instead of an array, it's treated as one row and converted the same way.