JSON Viewer, Formatter & Validator - Free Online Tool

JSON Viewer, Formatter, and Validator helps you quickly view, edit, beautify, and validate JSON data online.

Formatting Options

Indentation

Quote Style

Sort Keys

Trailing Commas

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JSON Tools

About JSON Formatting

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate.

Why Format JSON?

Formatting JSON makes it more readable with proper indentation and structure. This is especially helpful when working with large or complex JSON data.

Common JSON Uses

API responses and requests
Configuration files
Data storage
Data exchange between systems

JSON Syntax Rules

Data is in name/value pairs
Data is separated by commas
Curly braces hold objects
Square brackets hold arrays

JSON Example

{
  "name": "John Doe",
  "age": 30,
  "isStudent": false,
  "hobbies": ["reading", "hiking", "coding"],
  "address": {
    "street": "123 Main St",
    "city": "Anytown",
    "state": "CA",
    "zip": "12345"
  }
}