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JSON to CSV Converter - Convert JSON Arrays to CSV & Excel Online

Transform JSON object arrays into standard CSV and TSV formats with nested key flattening and UTF-8 BOM download options.

This tool runs in your browser.

CSV is generated locally in this browser.

How to use

  1. 01Paste a JSON array containing objects.
  2. 02Convert it to inspect the CSV result and table preview.
  3. 03Copy the CSV or download it when it is ready.

FAQ

How are deeply nested child objects handled during conversion?

The converter features smart flattening, turning nested structures (e.g. user.address.city) into flat dot-delimited spreadsheet columns.

Will special international characters display properly in Excel?

Yes. Exported CSV files include an optional UTF-8 BOM header, preventing gibberish characters in Microsoft Excel on Windows and macOS.

Can I choose alternative delimiters such as tabs or semicolons?

Yes. You can switch between commas, semicolons, tabs (TSV), and pipe characters based on your regional spreadsheet formats.