Best for
- Exporting API data to spreadsheets
- Data analysis preparation
- Sharing structured data
Privacy
JSON parsing and CSV generation happen locally. No data leaves your browser during conversion.
Quick tips
- All objects in the array share a unified header row built from all unique keys.
- Values containing the delimiter or quotes are quoted automatically.
- Nested objects are serialized as strings; flatten complex JSON before converting.
How to use this tool
- Paste a JSON array of objects.
- Choose the output delimiter.
- Click Convert and download the CSV.
Common questions
Does the JSON need to be an array?
Yes. The tool expects an array of flat or semi-flat objects.
What happens if objects have different keys?
All unique keys across all objects become columns. Missing values are left blank.