How do I convert CSV to JSON?

Paste CSV with headers above. Each following row becomes one JSON object using those headers as keys.

Can I convert CSV to JSON online?

Yes. This free converter works in your browser with no account.

How are CSV headers converted to JSON keys?

The first row supplies property names. Values in later rows map to those keys in order.

Can I convert a large CSV file to JSON?

Yes for typical classroom and API-sized sheets. Extremely large files may be limited by browser memory.

Can CSV with commas inside fields be converted correctly?

Yes when fields are quoted per CSV rules. The parser respects double-quoted cells and escaped quotes.

What is CSV to JSON Converter?

A free online tool that turns CSV text into a JSON array for developers and students.

How does the CSV to JSON Converter work?

It parses CSV rows with quote awareness, uses the header row as keys, and pretty-prints the resulting array.

How do I use the CSV to JSON Converter?

Paste CSV, try the example if needed, then copy the JSON output.

Is this CSV to JSON Converter free to use?

Yes. It is free with no sign-up.

Can I use the CSV to JSON Converter on mobile?

Yes. Mobile browsers are supported.

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CSV to JSON Converter

Convert CSV with a header row into a pretty-printed JSON array. Handles quoted commas for real spreadsheet exports.

Runs in your browser — your data stays on your device

Free tool

CSV (header row required)

Objects: 3
Keys: 3

JSON output

[
  {
    "id": "1",
    "name": "Amina",
    "course": "JavaScript"
  },
  {
    "id": "2",
    "name": "Omar",
    "course": "CCNA"
  },
  {
    "id": "3",
    "name": "Rahim, Jr.",
    "course": "Web Development"
  }
]

Copy JSON: [ { "id": "1", "name": "Amina", "course": "JavaScript" }, { "id": "2", "name": "Omar", "course": "CCNA" }, { "id": "3", "name": "Rahim, Jr.", "course": "Web Development" } ]

Spreadsheets are where data starts; JSON is where apps consume it. This free CSV to JSON converter maps header cells to object keys so frontend developers and students can build fixtures for API mocks and coding practice without installing software.

How to use the CSV to JSON Converter

1
Paste CSV that includes a header row.
2
Confirm object and key counts when conversion succeeds.
3
Copy the pretty-printed JSON array into your project or mock server.

Why header rows make or break CSV imports

Without headers you get anonymous columns. With headers, each row becomes a clear object for JavaScript. Supporting quoted commas means names like Rahim, Jr. survive the round trip—exactly the edge case beginners hit on day one.

CSV to JSON example

Paste the sample roster CSV. The converter returns an array of objects with id, name, and course keys, and it keeps the quoted comma inside Rahim, Jr. intact.

Guides and next steps

Privacy note

CSV parsing runs entirely in your browser. We do not upload your spreadsheet data.

Frequently asked questions

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