CSV ⇄ JSON converter

Turn spreadsheet rows into structured JSON arrays and back again — with header detection, quoted-field handling, and custom delimiters.

How to CSV ⇄ JSON converter

1. Step 1. Paste CSV (or JSON) into the input buffer.
2. Step 2. Choose the conversion direction.
3. Step 3. Copy the converted result from the output buffer.

Frequently asked questions

Does it support quoted fields with commas inside?

Yes — RFC-style quoted fields with embedded commas and escaped quotes are parsed correctly.

Can I convert JSON back to CSV?

Yes. The converter is bidirectional: an array of flat objects becomes a delimited table with a header row.

Is the conversion private?

Completely — it runs in your browser; no data is uploaded to any server.