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Toolify
File & Data

CSV to JSON Converter

Convert CSV data into structured JSON without uploading anything. Paste your rows, and the tool uses the first line as keys to build a clean JSON array of objects. Choose your delimiter and whether the first row is a header. All parsing happens locally in your browser, so your data stays private.

How to use the CSV to JSON Converter

  1. 1Paste your CSV. Add comma-separated data, ideally with a header row of column names.
  2. 2Set options. Choose the delimiter and confirm whether the first row is a header.
  3. 3Copy the JSON. Grab the formatted JSON array to use in your app or API.

Frequently asked questions

Does my data get uploaded?

No. Conversion runs entirely in your browser with JavaScript, so your CSV never leaves your device.

Does it handle quoted values with commas?

Yes. Quoted fields that contain the delimiter (for example, "Doe, Jane") are parsed correctly and kept as a single value.