Developer Tools toolsUpdated July 2026

Free CSV to JSON Converter

Convert CSV data to formatted JSON, directly in your browser.

Free online tool No signup Copy-ready result Browser-first privacy
AdvertisementTop tool sponsor space

CSV input

JSON output

Download .json
AdvertisementBelow tool sponsor space

How to convert CSV to JSON

  1. Paste your CSV data.
  2. Choose the delimiter and whether the first row is a header.
  3. Copy or download the resulting JSON.

How parsing handles quoted fields

Fields wrapped in double quotes — including ones containing commas, line breaks, or escaped quotes ("") — are parsed correctly, matching standard CSV quoting rules.

Common use cases

  • Convert a spreadsheet export into JSON for an API
  • Turn CSV data into JSON for a script or app
  • Quickly inspect CSV data as structured JSON

Frequently asked questions

Is this tool free?

Yes. It is completely free, with no signup and no limits.

Is my CSV data uploaded anywhere?

No. Parsing and conversion happen entirely in your browser.

What if my CSV doesn't have a header row?

Turn off "First row is a header" to get an array of arrays instead of an array of objects.

Can I use a semicolon or tab delimiter?

Yes. Choose comma, semicolon, or tab from the delimiter dropdown.

What happens with malformed CSV?

A clear error is shown if the CSV can't be parsed, such as from unbalanced quotes.