ZenovayTools

JSON to CSV Converter

Convert JSON arrays to CSV format. Flatten nested objects with dot notation and download as CSV file.

How to Use JSON to CSV Converter

  1. 1Paste your JSON array into the input editor.
  2. 2Nested objects are automatically flattened using dot notation.
  3. 3Click "Convert" to generate the CSV output.
  4. 4Preview the CSV table and adjust column order if needed.
  5. 5Download the result as a .csv file.
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Frequently Asked Questions

What JSON format is supported?▾
The input must be a JSON array of objects, like [{...}, {...}, ...]. Each object becomes a row in the CSV.
How are nested objects handled?▾
Nested objects are flattened using dot notation. For example, {"address": {"city": "NYC"}} becomes a column "address.city" with value "NYC".
Can I download the CSV file?▾
Yes, click the "Download CSV" button to download the output as a .csv file.
Is my data secure?▾
Yes, all processing runs in your browser. No data is sent to any server.
What happens with arrays in my JSON?▾
Array values are serialized as JSON strings in the CSV output. For example, ["a", "b"] becomes the string ["a","b"] in a single CSV cell.
Can I convert large JSON files?▾
Yes. The tool handles JSON data of any size with no hard limit. Processing happens in your browser and may take a moment for very large datasets.
Does this work on mobile devices?▾
Yes. The JSON to CSV converter runs entirely in your browser and works on any device with a modern browser, including phones and tablets.