JSON Formatter

Format, validate, and beautify JSON data

Input JSON

spaces

Output

Formatted JSON will appear here...

How to Use JSON Formatter

Quick Start Guide
  1. 1 Paste your JSON into the input area on the left
  2. 2 Choose indentation (2-8 spaces) from the dropdown
  3. 3 Click "Format JSON" to beautify your code
  4. 4 Copy or download the formatted result
Advanced Features
  • Syntax Validation: Automatic error detection and highlighting
  • Minification: Compress JSON for production use
  • Auto-formatting: Real-time formatting as you type
  • Privacy First: All processing happens in your browser

JSON Examples & Use Cases

API Response
{
  "status": "success",
  "data": {
    "users": [
      {
        "id": 1,
        "name": "John Doe",
        "email": "john@example.com",
        "role": "developer"
      }
    ]
  },
  "timestamp": "2024-01-15T10:30:00Z"
}
Configuration File
{
  "app": {
    "name": "MyApp",
    "version": "1.0.0",
    "environment": "production"
  },
  "database": {
    "host": "localhost",
    "port": 5432,
    "ssl": true
  }
}
Pro Tips
  • • Use consistent indentation (2 or 4 spaces) for better readability
  • • Validate JSON before using in production applications
  • • Minify JSON for faster API responses and reduced bandwidth
  • • Always escape special characters properly in string values

Common JSON Issues & Solutions

Trailing Commas

JSON doesn't allow trailing commas after the last item in objects or arrays.

❌ Wrong: {"name": "John",}
✅ Correct: {"name": "John"}
Unescaped Quotes

String values must escape internal quotes or use single quotes.

❌ Wrong: {"text": "He said "hello""}
✅ Correct: {"text": "He said \\"hello\\""}
Data Types

JSON supports strings, numbers, booleans, objects, arrays, and null.

{"string": "text", "number": 42, "boolean": true, "null": null}