JSON to CSV Converter

A JSON array of flat objects, like [{"name": "Ada", "age": 30}, ...] — each object becomes one CSV row.

The header row uses the union of every key seen across all objects — any object missing a given field just gets an empty cell there instead of the columns shifting or breaking.

They're converted to their JSON string representation within that cell, since CSV has no native way to represent nested structure.

No — conversion happens entirely in your browser.