CSV to JSON Converter

Runs in browser

Convert CSV rows to a JSON array of objects instantly.

Convert CSV text to JSON array of objects in your browser. First row is used as keys. Handles quoted fields. No data is sent to a server.

CSV to JSON Converter tool

Files never leave your browser.

Drag and drop a file here, or tap to select

nameagecityrole
Alice Johnson32New YorkEngineer
Bob Smith28San FranciscoDesigner
Carol White35AustinProduct Manager
Dave Brown24SeattleDeveloper

Preview (first 5 data rows)

JSON output
[
  {
    "name": "Alice Johnson",
    "age": "32",
    "city": "New York",
    "role": "Engineer"
  },
  {
    "name": "Bob Smith",
    "age": "28",
    "city": "San Francisco",
    "role": "Designer"
  },
  {
    "name": "Carol White",
    "age": "35",
    "city": "Austin",
    "role": "Product Manager"
  },
  {
    "name": "Dave Brown",
    "age": "24",
    "city": "Seattle",
    "role": "Developer"
  }
]

🔒 Runs in your browser · No uploads · Your data never leaves your device

How to use

  1. Paste CSV

    Paste your CSV data. The first line should be the header row.

  2. View JSON

    The tool outputs a JSON array of objects, one per row.

  3. Copy JSON

    Use Copy to copy the JSON result.

Common use cases

  • Importing spreadsheet data into an API — Convert CSV exports from Excel or Google Sheets to JSON arrays for use in API requests or seed scripts.
  • Transforming data pipeline inputs — Convert CSV data files to JSON before processing them with Node.js scripts or data transformation tools.
  • Debugging CSV data structure — Visualize a CSV as JSON to verify column names and data types before writing parsing code.

Examples

  • Simple CSV

    Two columns, two rows.

    Input
    name,age
Alice,30
Bob,25
    Output
    [{"name":"Alice","age":"30"},...]

Frequently asked questions

How are quoted fields handled?
Fields enclosed in double quotes can contain commas; they are parsed correctly.
What if my CSV has no header?
The first row is always used as the property names. Add a header row for best results.

Key concepts

CSV
Comma-Separated Values — a plain text format where each line is a record and fields are separated by commas.
Header row
The first row of a CSV file, typically containing column names that become JSON object keys during conversion.

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