CSV ⇄ JSON Converter
Switch between simple tabular data and JSON without uploading your files.
Everything runs locally in your browser. Nothing is sent to the server.
Output
What it does
Convert a CSV table into an array of JSON objects, or turn a JSON array into a CSV file format. Useful for quick data cleanup, API tests, and spreadsheet work.
How to use it
- Choose the conversion direction.
- Paste your CSV or JSON.
- Convert, then copy the result.
Tips
- CSV headers become JSON property names.
- JSON input should be an array of objects.
- Your data stays in the browser.
FAQ
Are files uploaded?
No. Conversion happens locally in your browser.
Can CSV values contain commas?
Yes. Put values containing commas or line breaks inside double quotes.
Does it support nested JSON?
Nested values are kept as JSON text inside a CSV cell.