CSV / JSON Converter
Convert between CSV and JSON formats. First CSV row becomes JSON keys.
Convert between CSV and JSON in either direction, right in your browser. Turn spreadsheet rows into an array of objects, or flatten JSON objects back into CSV columns.
Frequently asked questions
How does CSV map to JSON?
The header row becomes object keys, and each following row becomes an object — giving you an array of records.
Does it handle quoted values?
Yes — quoted fields containing commas, quotes, or line breaks are parsed and produced correctly.
Can it go both ways?
Yes — toggle the direction to convert CSV to JSON or JSON to CSV.
Is it private?
Yes — conversion runs in your browser with no uploads.