FreeDev Tools

CSV to JSON Converter

Parse CSV and convert it into a JSON array with one click.

Runs locally in your browser. Your input is not uploaded.

CSV to JSON Converter parses CSV text and produces a structured JSON array in one click. The first row is treated as field names and each subsequent row becomes a JSON object. Download the result or copy it directly into your code.

Frequently Asked Questions

How is CSV converted to JSON? +

The first row is treated as headers and each following row becomes a JSON object in the output array.

Can I download the JSON output? +

Yes, use the download button to save the converted JSON file directly to your device.

Does this validate CSV? +

Yes, malformed CSV input is detected and clear error messages are shown before conversion.

Is my data private? +

Yes, conversion happens entirely in your browser. No data is sent to any server.

How to Use

  1. 1

    Paste or upload your CSV

    Paste CSV text directly into the input field. The first row is treated as the column headers.

  2. 2

    Convert to JSON

    Click "Convert" β€” each CSV row becomes a JSON object with keys from the header row.

  3. 3

    Copy or download

    Copy the formatted JSON output or download it as a .json file for use in your project.

Frequently Asked Questions

The first row of the CSV is used as field names (headers). Each subsequent row becomes a JSON object in the output array.