🔄 CSV to JSON Converter

No. File reading and JSON conversion run inside your browser. CSV content and converted JSON are not sent to Yioo servers.

When enabled, the first CSV row becomes object keys and the result is an array of JSON objects. When disabled, each CSV row stays as an array.

There is no server-side limit, but the browser uses local memory. Very large CSV files or files with many rows may become slow depending on your device.

Use it when you need to turn spreadsheet exports or CSV data into JSON for API tests, configuration files, or development sample data. Review readable output with pretty printing, then use Compact before copying when you need whitespace-free JSON.