CSV ↔ JSON Converter
Move structured data between CSV and JSON
About CSV ↔ JSON Converter
Convert comma-separated data to JSON objects or an array of JSON objects to CSV. Handles quoted fields, commas, and multiline values.
Frequently Asked Questions
No. Conversion happens in this browser. Copy or download the result when it is ready.
Choose a mode, paste your input, and check the output alongside it. The original input stays available so you can adjust your options.
CSV needs a header row with unique names. JSON must be an array of flat objects. CSV fields stay strings to preserve leading zeroes. Exported spreadsheet formulas are escaped with an apostrophe.