CSV to JSON
without uploading it.
Paste CSV data and get back a clean JSON array of objects — entirely in your browser.
Paste your CSV data, first row treated as headers.
Click "Convert to JSON".
Copy the result.
Why there's no upload step
The first row of your CSV becomes the object keys, and every following row becomes one JSON object. Quoted fields with commas or line breaks inside them are handled correctly, not just split on every comma.
Is my data sent anywhere?+
No. Parsing happens entirely in your browser — nothing is uploaded or logged.
What if a field contains a comma?+
Wrap it in double quotes in your CSV, standard CSV escaping — the parser handles quoted fields, including escaped quotes ("") inside them.
Are all values treated as strings?+
Yes — CSV has no native types, so every value comes through as a JSON string. Parse numbers/booleans yourself afterward if you need them typed.
Can I go the other direction?+
Yes — use the JSON to CSV page.