Does it support headers?

Yes. The first row is typically treated as field names for objects.

Is CSV to JSON private?

Yes. Parsing runs in your browser.

Is this converter free?

Yes. Convert CSV to JSON online free.

CSV to JSON Converter

Convert CSV to JSON online instantly. Free CSV to JSON converter for spreadsheets and APIs — private in-browser.

Runs in your browser. Files stay on this device.

CSV

Quoted fields and custom delimiters supported

name	role	active	city
Ada Lovelace	Engineer	true	London
Grace Hopper	Admiral	true	New York
Alan Turing	Mathematician	false	Manchester

3 rows · 4 columns

JSON

Array of objects · syntax highlighted

[
  {
    "name": "Ada Lovelace",
    "role": "Engineer",
    "active": true,
    "city": "London"
  },
  {
    "name": "Grace Hopper",
    "role": "Admiral",
    "active": true,
    "city": "New York"
  },
  {
    "name": "Alan Turing",
    "role": "Mathematician",
    "active": false,
    "city": "Manchester"
  }
]

318 chars