Developer Tools

Convert JSON to CSV

Convert arrays of JSON objects into tabular CSV format with automatic dot-notation flattening for nested objects.

100% free
Files stay on your device
No sign-up, no watermark

Input JSON

Generated CSV

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What is JSON to CSV converter?

Export database dumps and REST API responses into business-ready spreadsheets. Recursively flattens nested object properties with dot notation (e.g. user.address.city) and escapes comma delimiters automatically.

How to use JSON to CSV converter

1
Add your file or input
Choose a supported file, drag it onto the upload area, or type/paste the data this tool works with.
2
Adjust the options
Pick the output format, quality, size or other settings the tool offers. Defaults work well for most files.
3
Process and download
Run the tool and save the result. Processing happens in your browser, so nothing is uploaded to a server.

Frequently asked questions

How are nested JSON objects handled during CSV conversion?

Nested object keys are flattened into dot-delimited column headers (e.g., "customer.name", "customer.email") to preserve data hierarchy inside tabular sheets.

Can I export the result directly as an Excel-compatible file?

Yes. The output includes an optional UTF-8 Byte Order Mark (BOM) to ensure special characters and accented text open perfectly in Microsoft Excel.

What happens if some JSON objects have different keys?

The converter aggregates all unique keys across all array objects into a unified schema, filling missing keys in specific rows with empty values.

Last updated: October 13, 2026