Convert CSV data to JSON in one click. Paste comma-separated values below — with or without a header row — and get clean, formatted JSON you can copy straight into your code or API tests.
How to Use
- Paste your CSV data into the CSV box.
- Tick First row is header if the top row contains column names (ticked by default).
- Click Convert to generate the JSON.
- Use Copy JSON to copy the result, or Clear to start again.
Key Features
- Smart CSV parsing — handles quoted fields, commas inside quotes and doubled quotes correctly.
- Header or no header — use your first row as keys, or get column1, column2 and so on.
- Pretty-printed JSON — two-space indented output, easy to read and debug.
- One-click copy — send the JSON to your clipboard instantly.
- Private — everything runs in your browser.
FAQs
What if my CSV has no header row?
Untick “First row is header” and each column becomes column1, column2 and so on.
Does it handle commas inside fields?
Yes. Fields wrapped in double quotes may contain commas, line breaks or doubled quotes (“”) and are parsed correctly.
Can I convert the JSON back to CSV?
Yes — use our JSON to CSV Converter to go the other way.
Is my data sent anywhere?
No. All conversion happens locally in your browser.