100% in your browser · data never leaves your device

CSV to JSON Converter — Free & Private (In-Browser)

Turn CSV into JSON in your browser. Choose array-of-objects or keyed output and set the delimiter. No upload, no signup. Free.

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How to use CSV to JSON

  1. 1Paste your CSV (or upload a .csv file) into the input box.
  2. 2Choose the output shape (array of objects) and the delimiter.
  3. 3The JSON is generated locally in your browser as you type.
  4. 4Copy or download the result as a .json file.

CSV to JSON FAQ

Can it handle quoted fields and commas inside values?
Yes. A spec-compliant CSV parser handles quotes, escaped quotes, and embedded newlines correctly.
Are my CSV rows sent anywhere?
No. Everything is parsed locally in your browser; your data stays on your device.