CSV to JSON Converter

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JSON Preview

Output format

How to use the CSV to JSON converter

  1. Paste CSV text into the left text area, or upload a CSV file using the drop area.
  2. Choose whether the first row is the header row (column names).
  3. The tool converts each row into a JSON object and shows a pretty-printed JSON array on the right.

Privacy

All conversion happens locally in your browser. Your CSV and JSON data are never uploaded to a server.

CSV to JSON FAQ

How is the header row handled?

If "First row is header" is enabled, the first row of the CSV is used as field names and the remaining rows become JSON objects. If disabled, generic column names like col1, col2 are used.

What JSON format is generated?

The tool outputs a JSON array. Each CSV row becomes one JSON object with key-value pairs for each column.

Is my CSV uploaded?

No. Parsing and conversion run entirely in your browser. Data is never sent to a server.