JSON to CSV Converter

• Converts JSON arrays to CSV with auto-detected column headers
• Flattens nested JSON objects using dot notation (user.name)
• Handles arrays, nulls, and mixed data types gracefully
• Download result as .csv file for Excel, Google Sheets, or databases
• All processing runs locally — no data uploaded to servers

Use Cases

Frequently Asked Questions

How do I convert JSON to CSV?

Paste your JSON array of objects into the input field. The tool automatically generates CSV with column headers from JSON keys. Download the .csv file or copy the text to clipboard.

Can this handle nested JSON objects?

Yes. Nested objects are flattened using dot notation — for example, {user: {name: 'John'}} becomes a column named 'user.name' with value 'John'.

Can I open the CSV output in Excel or Google Sheets?

Yes. Download the .csv file and open it directly in Excel, Google Sheets, LibreOffice Calc, or any spreadsheet application.

Is my JSON data uploaded to a server?

No. All conversion runs locally in your browser. No data is sent to any server — this makes it safe for sensitive or proprietary data.

What JSON format does this converter expect?

The converter works best with JSON arrays of objects, like [{"name":"John","age":30},{"name":"Jane","age":25}]. Each object becomes a CSV row, and keys become column headers.

Is this JSON to CSV converter free?

Yes. Completely free with no limits on data size, no registration, and no server-side processing.