What JSON shape converts to CSV?

An array of flat objects, like [{"name":"ada","role":"admin"},{...}]. The converter takes the union of all keys as the CSV header, so objects that are missing a field just get an empty cell. Deeply nested objects do not map cleanly to a flat table; nested values are serialized as JSON text in the cell so nothing is lost.

Does it handle commas and quotes inside values?

Yes. On the JSON-to-CSV side, any value containing a comma, double quote, or newline is wrapped in double quotes with internal quotes doubled, per RFC 4180. On the CSV-to-JSON side, it parses those quoted fields back correctly. That quoting is the part hand-rolled CSV code usually gets wrong.

No. The conversion runs entirely in your browser - nothing you paste is sent anywhere. Useful when the rows are exported user records, analytics, or anything you would not want to hand to a third-party site.

Free tool · Runs in your browser · Nothing uploaded

JSON ↔ CSV.

Convert a JSON array of objects to CSV, or CSV back to JSON — with correct quoting for commas, quotes, and newlines (the part hand-rolled CSV always gets wrong). Two-way, all in your browser.

JSON (array of objects)

CSV

The format every spreadsheet speaks

JSON is how services talk to each other; CSV is how humans and spreadsheets look at data. Moving between them sounds trivial until a value contains a comma or a line break and a naive split shreds the whole file. Correct CSV quoting — doubling internal quotes, wrapping fields that need it — is a small standard (RFC 4180) that most quick scripts skip, which is why imports mysteriously break. This handles it both directions.

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