What happens without a header row?

Each row becomes an array of values instead of an object.

Is my data sent to a server?

No. Everything is processed in your browser, which matters when the input is a production payload, token or query. Nothing is uploaded, logged or stored.

CSV to JSON Converter - Free Online Tool

JavaScript is turned off. InspireTools processes files in your browser, so the tools need JavaScript to run.

Convert CSV rows into a JSON array, with delimiter detection.