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JSON to CSV Converter

Free online JSON to CSV converter. Paste a JSON array and convert it to a downloadable CSV file instantly. Flattens nested objects and handles arrays cleanly. Runs 100% in your browser.

json-to-csv.run

Why convert JSON to CSV?

JSON is what APIs speak; CSV is what spreadsheets, analysts and import wizards understand. Converting a JSON array of objects to CSV turns API data into something Excel, Google Sheets or any BI tool opens directly.

Every unique key across the objects becomes a column header and each object becomes a row. Values containing commas or quotes are escaped according to the CSV standard (RFC 4180), so the file opens correctly everywhere.

How to use

  1. 01Paste a JSON array of objects into the input box.
  2. 02Select the delimiter to use in the output CSV.
  3. 03Click Convert to CSV to generate the spreadsheet-ready output.
  4. 04Use Copy or Download .csv to save the result.

Frequently asked questions

What JSON structure does this tool accept?
The tool accepts a JSON array of objects, where each object represents one row. All keys across all objects become the CSV headers.
What happens with nested objects?
Nested objects are converted to their string representation. For fully flattened output, flatten your JSON before converting.
Is my data sent to a server?
No. The conversion runs entirely in your browser. Your JSON data never leaves your device.

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