Convert JSON to CSV

Convert JSON arrays or objects to CSV format instantly.

JSON Data

Delimiter

CSV Output

Result will appear here...

The Methodology

Flatten JSON → Extract Headers → Map Rows → Join with Delimiter

This tool uses the verified professional formula shown above. We cite our sources so you can trust every result.

How it works

This tool takes a JSON input (typically an array of objects) and transforms it into a Comma-Separated Values (CSV) format. It automatically detects the keys in your JSON objects to create the header row.

If your JSON is nested, the converter attempts to flatten the structure using dot notation (e.g., user.name) so that the data fits into a flat table.

FAQ

Does my data get sent to a server?

No. All conversion logic runs locally in your browser. Your JSON data never leaves your computer.

What happens if my JSON is invalid?

The tool will display a validation error. Ensure your JSON follows standard syntax (double quotes for keys, properly closed brackets).