CSV ⇄ JSON Converter
Convert CSV data to JSON and JSON arrays back to CSV with configurable delimiter, header row, and proper quoted-field handling. Everything runs in your browser.
CSV input
JSON output
Output will appear here...
Convert spreadsheet exports and API payloads between CSV and JSON. The parser follows RFC 4180 conventions: fields containing the delimiter, quotes, or newlines are wrapped in double quotes, and embedded quotes are escaped by doubling. With a header row enabled, CSV converts to an array of JSON objects keyed by column name; without it, you get an array of arrays. JSON to CSV accepts either shape. Your data never leaves your browser.