JSON to CSV Converter
Convert JSON arrays to CSV with nested object flattening. Preview, download, or copy.
Working with JSON data from an API and need it in a spreadsheet? This converter handles it entirely in your browser — paste your JSON, hit convert, and get a properly formatted CSV file ready to open in Excel or Google Sheets.
Nested objects are automatically flattened using dot notation (so address.city becomes a column header). Arrays in values are serialized as strings. No data ever leaves your device.
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