Online JSON Viewer

JSON, short for JavaScript Object Notation, is a lightweight computer data interchange format. JSON is a text-based, human-readable format for representing simple data structures and associative arrays (called objects).

Read more: json.org, wikipedia, google

In JSON, they take on the following forms: object, array, value, string and number.

Security concerns:

- The JSON code entered by our users is not saved on the server. In fact, the site doesn't even have a database
- Our site uses HTTPS, so all the traffic between the client and our server is encrypted
- Our service has been running since 2008 and is trusted by more than 500,000 users every month

Updates:

- April 2025: Now you can import JSON files using the "Load JSON data" button
- June 2026: Slow loading speed is now fixed
- October 2026: Fixed viewer bug

For any questions or problems please get in touch

{
	"firstName": "John",
	"lastName": "Smith",
	"gender": "man",
	"age": 32,
	"address": {
		"streetAddress": "21 2nd Street",
		"city": "New York",
		"state": "NY",
		"postalCode": "10021"
	},
	"phoneNumbers": [
		{ "type": "home", "number": "212 555-1234" },
		{ "type": "fax", "number": "646 555-4567" }
	]
}

JSON Viewer was created in 2008 as a side project and has become the largest project of it's kind. It allows users to convert JSON strings to a friendly readable format

The application is using Ext JS

For any questions or problems please get in touch