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  3. /JSON to CSV

JSON to CSV

Convert a JSON array of objects into a CSV table without dropping any fields.

SIMILAR DEVELOPER

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Base64 Encoder/Decoder

Fast conversion between string and base64 encodings

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JSON Tree Viewer

Inspect nested JSON structures and fix syntax errors

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JWT Encoder/Decoder

Decode a JWT to read its header, payload and expiry status. Decoding only: signatures are not verified.

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WHAT IS JSON TO CSV?

Convert a JSON array of objects to a CSV table. The columns are the union of the keys of every object, so no field is dropped.

How to use?

  1. Paste or upload a JSON array of objects.
  2. Click Convert and review the generated CSV.
  3. Copy or download the CSV.

Frequently asked questions

What happens if the JSON objects don't all have the same fields?

The CSV header becomes the UNION of every object's keys — a row missing a given field just gets a blank cell for it. A column is never silently dropped because one object happened to omit it.

What happens to a value that's itself a nested object or array?

That cell is filled with the nested value's JSON.stringify() text, kept intact rather than flattened or dropped — no data is silently lost, it just isn't a plain tabular value in that cell.

Does this upload my data anywhere?

No — the entire conversion runs in your browser. Nothing you paste or upload is ever sent to JoeLucky's servers or any third party.

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Conversion runs entirely in your browser — nothing you paste or upload here is sent to any server.