Data tool

CSV to JSON

Paste CSV or drop a .csv/.tsv file to convert rows into clean JSON arrays or objects locally in your browser.

Runs Locally

This tool runs in your browser. Files never leave your device.

CSV input

Drop a CSV/TSV file here or paste delimited text below.

Open file

Drag and drop a CSV or TSV file anywhere inside this input card.

JSON output

3 rows · 5 columns · 378 B JSON · Comma delimiter

DelimiterOutput

[
  {
    "name": "Laramie",
    "email": "laramie@example.com",
    "plan": "Pro",
    "active": true,
    "credits": 120
  },
  {
    "name": "Jane Doe",
    "email": "jane@example.com",
    "plan": "Free",
    "active": false,
    "credits": 18
  },
  {
    "name": "Sam Smith",
    "email": "sam@example.com",
    "plan": "Team",
    "active": true,
    "credits": 240
  }
]

CSV preview

Showing up to 250 rows and 40 columns before conversion.

name	email	plan	active	credits
Laramie	laramie@example.com	Pro	true	120
Jane Doe	jane@example.com	Free	false	18
Sam Smith	sam@example.com	Team	true	240

What this tool does

CSV to JSON turns spreadsheet-style CSV into JSON arrays and objects, mapping each column to a key and each row to a record. It is the quick way to take an export from Excel or a database and get JSON you can drop straight into code or send to an API.

How it works

Paste your CSV or open a file, and the tool converts it to JSON in your browser. Review the output and copy it. Nothing is uploaded.

When to use CSV to JSON

Turning a spreadsheet export into JSON for an app

Feeding CSV data into an API that expects JSON

Converting a data dump for a script

Reshaping tabular data into records

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