JSON to CSV Converter

Paste or type JSON (array of objects), flatten nested keys, and download a properly escaped CSV.

Designed to process supported files locally in your browser.

How to use JSON to CSV Converter

  1. Paste JSON.
  2. Convert.
  3. Copy or download CSV.

How it works

Objects are flattened with dot notation; values are CSV-escaped.

Privacy

Your files are processed in your browser and are not uploaded to ToolBoxy servers.

JSON to CSV Converter FAQ

Does it support nested JSON?

Yes. Nested objects become dotted keys.

Is data uploaded?

No.

What about arrays inside objects?

They are stringified as JSON in the cell.