DEVELOPER TOOLS · LOCAL ONLY
Convert CSV rows into a JSON array using the first row as headers.
Up to 200,000 characters. Every row must match the header column count.
Run the tool to see the result
Up to 200,000 characters. Every row must match the header column count.
How to use
Turn a spreadsheet export into JSON you can feed to an API or use as fixture data. Quoted fields and commas inside fields are handled, blank lines are skipped, and the delimiter can be changed to a semicolon, pipe, or any single character.
Limits and privacy
Everything runs inside this browser. Your input is never uploaded, stored, or written to the URL or any log.