How are column headers used?

The first row of the CSV is treated as column headers. Each subsequent row becomes a JSON object with the header values as property names.

What delimiters are supported?

Comma (,), semicolon (;), tab, and pipe (|) delimiters are supported. The delimiter is automatically detected from the first row.

Does it handle quoted fields?

Yes. The parser follows RFC 4180 and correctly handles quoted fields, escaped quotes (""), and fields containing newlines or delimiters.

CSV to JSON

Turn CSV data into JSON arrays where each row becomes an object with column headers as property keys. Supports comma, semicolon, tab, and pipe delimiters with automatic detection. Handles quoted fields and RFC 4180 edge cases. Runs entirely in your browser — your data never leaves your device.

Your files are processed entirely in your browser. Nothing is uploaded to any server.

How to Use CSV to JSON

1
Paste or type your text
Enter your text in the input area. You can paste from clipboard or type directly.
2
See instant results
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3
Copy the output
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Frequently Asked Questions

Next Steps

Pretty-print the JSON output

Validate the converted JSON

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