DATA STUDIO · FREE

CSV to JSON and JSON to CSV Converter

Turn a spreadsheet export into JSON for an app or API, or JSON into a CSV that opens in Excel.

Runs in your browser. Nothing you type is stored or sent.

Runs in your browser: your data is not uploaded.

How it works

  1. 1Pick the direction.
  2. 2Paste the data or open a file.
  3. 3Convert, then copy or download.

Questions

Will it open in Excel?

Yes. The CSV is saved with the marker Excel needs to show accents and symbols correctly.

Is my data sent anywhere?

No. This runs in your browser, so what you type stays on your device.

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About the CSV and JSON

The CSV and JSON converter turns CSV into JSON and JSON back into CSV that opens in Excel or Google Sheets. It runs in your browser, so the data stays private.

When to use it

Tips for a better result

Developer tools that stay in your browser

Your data and code are processed on your device, which matters for API keys, customer records and private code. Each tool does one job quickly, with no sign-up.

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