⇄ConvertHub
CSV → JSON

CSV to JSON Converter

Convert Comma-Separated Values to JavaScript Object Notation online. Free, runs in your browser — no upload, no signup.

CSV → JSON

How to convert CSV to JSON

Paste your CSV data into the input box on the left, click Convert, and get JSON output on the right. Everything runs locally in your browser.

Example: CSV → JSON

Input (CSV)

name,age,city
Alice,30,Beijing
Bob,25,Shanghai

Output (JSON)

[
  {
    "name": "Alice",
    "age": "30",
    "city": "Beijing"
  },
  {
    "name": "Bob",
    "age": "25",
    "city": "Shanghai"
  }
]

About CSV and JSON

CSV (Comma-Separated Values, .csv) and JSON (JavaScript Object Notation, .json) are common structured data formats. This converter transforms CSV into JSON entirely in your browser — no data is uploaded to any server.

Frequently asked questions

Is this CSV to JSON converter free?

Yes, completely free. All conversion happens in your browser, so your data never leaves your device.

Do I need to upload my .csv file?

No. Paste the content directly. There is no server-side processing, no file upload, and no storage.

Is there a limit on data size?

It depends on your browser, but most machines handle tens of thousands of rows without issue. For very large files, performance may vary.

Related converters