About this tool
Convert CSV to JSON or JSON to CSV in a single paste. The first CSV row becomes the JSON keys, and a JSON array of objects becomes a header row plus data rows. No sign-up.
~/tools$ ./use
CSV to JSON Converter
Frequently asked questions
How are CSV columns mapped to JSON?
The first row is treated as headers; every later row becomes one JSON object keyed by those headers.
Are quoted and multi-line fields supported?
Yes — the CSV parser handles quoted fields containing commas and line breaks.