JSON to CSV Converter

Convert a JSON array or object into CSV in the browser. Nested objects are flattened into dot-notation columns (address.city) so API responses paste cleanly into a spreadsheet.

Private browser-side processing
Input JSONJSON
Paste a JSON array of objects, or a single object. Nested objects become dot-notation columns; arrays inside a field are kept as JSON text.
4 lines · 203 bytes
Output CSVCSV
No action has been run yet.
0 lines · 0 bytes

About the JSON to CSV converter

Built for API responses and no-code tools

Paste the JSON array a webhook or API returns and get a CSV you can drop straight into Google Sheets or Excel — handy when a Zapier, Make, or n8n step hands you raw JSON and you just need the rows in a spreadsheet.

Nested objects become columns

A field like {"address":{"city":"Tokyo"}} becomes its own address.city column instead of collapsing into unreadable text. Arrays inside a field are kept as JSON text in a single cell, since exploding them into columns would make the header row unpredictable.

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