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JSON ⇄ CSV Converter

Turn a JSON array into CSV, or a CSV table back into JSON — live in your browser.

JSON input
CSV output
About this tool

Free online JSON to CSV (and back)

The Ajenza JSON ⇄ CSV converter turns a JSON array of objects into a CSV table — the union of all keys becomes the header row, and values with commas, quotes or line breaks are correctly quoted. It also parses CSV back into JSON, using the first row as keys and inferring numbers and booleans. Pick your delimiter (comma, semicolon, tab or pipe). Nested objects and arrays are kept as JSON text in the cell. Everything runs locally — nothing is uploaded.

Frequently asked questions
Is it free?

Yes — completely free, with no sign-up, download or watermark.

Does it handle quotes and commas in fields?

Yes — quoting and escaping follow the standard CSV rules, both when writing and reading.

Is my data uploaded?

No — everything runs in your browser.

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