Data FormatsLOCALRuns in your browser
CSV ⇄ JSON Converter
Convert CSV rows with a header to JSON objects, or JSON objects to CSV, locally.
This tool handles input and primary processing in your browser and is designed not to send the input to QuickKit’s server.
How it works
Choose the direction explicitly. CSV to JSON requires unique, non-empty headers and rejects short or extra fields. JSON to CSV accepts an array of objects and writes the union of keys. Nested values become JSON text, so round trips are not guaranteed.