How to convert a JSON array to CSV

1. Paste a JSON array of objects

   Drop your JSON into the "JSON array" field. The top level MUST be an array, and every entry must be an object — anything else throws "JSON must be an array of objects."

2. How columns are picked

   The tool unions all keys across all objects to build the header row. Missing keys in any object are emitted as empty cells, so heterogeneous arrays still round-trip cleanly.

3. Quoting rules

   Cells containing comma, double-quote, or newline are wrapped in double quotes; embedded " is escaped as "". null and undefined values become empty strings; other types are stringified via String().

4. Press Run

   Result is a single `csv` field — the header line followed by one line per object, separated by \n. Paste it into your spreadsheet or save as a .csv file.