Convert a JSON array into CSV.
Need to convert JSON to CSV quickly? This free online JSON to CSV converter turns any JSON array of objects into a clean, spreadsheet-ready CSV file in seconds. Paste your JSON, get instant CSV output with a union header row, proper quoting for commas and special characters, and a one-click download. No sign-up, no installation — just fast, accurate JSON to CSV conversion in your browser.
The tool accepts a JSON array of objects — for example, [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Each object becomes a row, and the union of all keys across every object becomes the header row. If an object is missing a key, that cell is left blank.
Non-primitive values (nested objects, arrays) are serialized using JSON.stringify and placed as a single string in the cell. If that string contains a comma or quote, it is automatically double-quoted per the CSV spec so your spreadsheet app reads it correctly.
No. The converter follows RFC 4180 quoting rules: any field containing a comma, double-quote, or newline is wrapped in double-quotes, and any internal double-quote is escaped by doubling it (e.g. " becomes ""). The output is safe to open in Excel, Google Sheets, or any standard CSV reader.
Yes. Once the conversion succeeds a Download CSV button appears in the toolbar. Clicking it saves an output.csv file directly to your device. You can also use the Copy button to paste the CSV text wherever you need it.