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Convert a Sample CSV to JSON

See a small, generic CSV converted into a JSON array of objects.

About this tool

This tool converts a CSV table into a JSON array of objects (using the first row as field names), or converts a JSON array of flat objects back into CSV with a header row.

It is useful when you have exported data from a spreadsheet and need it as JSON for an API request or a config file, or the reverse — you have a JSON array from an API response and want to open it in a spreadsheet.

The CSV parser handles basic comma-separated values and quoted fields containing commas. It does not handle every edge case of the CSV spec (like quoted fields containing embedded newlines) — for those, a dedicated CSV library is more reliable.

Frequently asked questions

Does this handle quoted fields with commas inside them?

Yes, fields wrapped in double quotes containing commas are handled correctly, following the common CSV convention.

What if my JSON has nested objects?

JSON → CSV works best with flat objects. Nested objects or arrays inside a field will be stringified rather than expanded into columns.

Does the first CSV row have to be a header?

Yes, CSV → JSON assumes the first row contains field names and uses them as the JSON object keys.

Other CSV ↔ JSON Converter scenarios

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