Developer
JSON to CSV Converter
Last updated: July 11, 2026
Convert JSON data to CSV format instantly. Paste your JSON array and get a downloadable CSV file for spreadsheets and data analysis.
How to Use This JSON to CSV Converter
- Paste your JSON array of objects into the input field.
- Select the delimiter (comma is standard for CSV).
- Click "Convert to CSV" to see the output, or "Download CSV" to save the file.
Supported JSON Formats
| Format | Example |
|---|---|
| Array of objects | [{"a":1,"b":2}, {"a":3,"b":4}] |
| Nested objects | [{"name":"John","addr":{"city":"NY"}}] |
| Mixed types | [{"id":1,"active":true,"score":9.5}] |
Note: Nested objects will be flattened with dot notation (e.g., addr.city).
Frequently Asked Questions
What JSON format works?
The converter expects a JSON array of objects. Each object becomes a row, and each key becomes a column header. Nested objects are flattened using dot notation (e.g., "address.city" becomes a column).
Is my data sent to a server?
No. All conversion happens locally in your browser. Your JSON data is never sent to any server, making this tool completely private and safe to use with sensitive data.