Json formatter

🔧 Instantly Format & Validate Your JSON Data

Use this simple yet powerful tool to clean, validate, and visualize your JSON in seconds. Whether you’re a developer, data analyst, or API tester, this tool ensures your JSON is readable and error-free directly in your browser.

• ✔️ Format ugly or compact JSON for readability
• ✔️ Detect syntax errors instantly
• ✔️ Copy/paste with one click
• ✔️ No server used – works entirely in-browser

Try It Now

Paste your JSON below and click “Format JSON”.

Pro Tip: Use this before submitting JSON to APIs or integrating into your JavaScript code to avoid broken responses.

Json Example

Raw JSON (Before Formatting)

{"user":{"id":123,"name":"Alice","email":"alice@example.com"},"roles":["admin","editor"],"isActive":true,"lastLogin":"2025-05-23T10:42:00Z"}

Formatted Output (After Using the tool)

{
  "user": {
    "id": 123,
    "name": "Alice",
    "email": "alice@example.com"
  },
  "roles": [
    "admin",
    "editor"
  ],
  "isActive": true,
  "lastLogin": "2025-05-23T10:42:00Z"
}

🔍 Explanation of the JSON

Key	Type	Description
user	Object	Contains user details (ID, name, email)
roles	Array	The roles assigned to the user
isActive	Boolean	Whether the user account is active
lastLogin	Timestamp	Last login date in ISO 8601 format

🧪 Use Case for This Example

This kind of JSON could be:

• A response from a user management API
• A user session object in a web app
• Part of a config file in a CMS or backend system