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Data File Tool

JSON Formatter

JSON Formatter.

Format and indent JSON for readability.

Your files never leave your device

What it does

Format and indent JSON for readability.

Why use it

JSON Formatter transforms JSON in your browser — private, free, no sign-up.

Example input

{"id":1,"name":"Alice","email":"alice@example.com"}

Example output

[
  {
    "id": 1,
    "name": "Alice",
    "email": "alice@example.com"
  }
]

Frequently Asked Questions

Is my data uploaded when using JSON Formatter?

No. All processing runs locally in your browser. Your files never leave your device.

Do I need an account?

No account is required. All tools are free and work instantly.