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”.

JSON Formatter & Validator

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

KeyTypeDescription
userObjectContains user details (ID, name, email)
rolesArrayThe roles assigned to the user
isActiveBooleanWhether the user account is active
lastLoginTimestampLast 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