How are CSV headers handled?

The first row of CSV is treated as column headers. Each following row becomes a JSON object with those keys.

What JSON format is required for CSV output?

JSON to CSV expects an array of objects. Each object's keys become column headers.

Yes. Fields wrapped in double quotes can contain delimiters and line breaks. Escaped quotes ("") are supported.

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Delimiter

CSV input

JSON output

1
Choose direction
Toggle between CSV to JSON and JSON to CSV. For CSV input, pick comma, semicolon, or tab delimiter.
2
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Paste your data into the input area or upload a local .csv or .json file. Files are read in your browser only.
3
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The converted output updates live. Copy it to the clipboard or download as a .json or .csv file.

No. Conversion runs entirely in your browser. Your data never leaves your device.

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