CSV to JSON Converter

Turn CSV files with headers into clean JSON — objects or arrays — in one click.

CSV input

Delimiter

Output mode

JSON output

How to Use This Converter

Paste CSV (with a header row), choose your delimiter, and convert. Copy the JSON into your code or API.

What if my CSV has no header row?

Use Arrays mode — the output becomes arrays of strings, starting with the first row, so no keys are invented.

Are values converted to numbers?

No — every value stays a string by default to preserve exact data. Convert types in your code as needed.

Does it handle quoted commas?

Yes. A field like "Smith, John" stays one field; quotes are removed and the comma is kept inside the value.

Is my data stored?

No — conversion happens entirely in your browser.

Convert this CSV (header row: name,age,city):

name,age,city
Alice,30,Paris
Bob,25,Tokyo

In Objects mode you get one JSON object per row, with headers as keys:

[
  { "name": "Alice", "age": "30", "city": "Paris" },
  { "name": "Bob", "age": "25", "city": "Tokyo" }
]

Objects mode — each row becomes an object keyed by the header row; the output is an array of objects.
Arrays mode — the output is an array of arrays, and the first row is your header list.
String values — numbers stay text, so values like "30" must be converted in your code if you need arithmetic.