JSON Formatter, Editor & Validator

JSON (JavaScript Object Notation) is a lightweight data-interchange format. Here's a basic example:

{
  "name": "John Doe",
  "age": 30,
  "isStudent": false,
  "hobbies": ["reading", "swimming"],
  "address": {
    "city": "New York",
    "country": "USA"
  }
}

JSON is language-independent and widely used for transmitting data in web applications.

Our formatter beautifies your JSON for better readability:

Unformatted JSON:

{"name":"John","age":30,"city":"New York"}

Formatted JSON:

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

Click the 'Format' button to automatically beautify and properly indent your JSON data.

Our editor validates JSON in real-time and highlights errors:

Valid JSON:

{
  "valid": true,
  "numbers": [1, 2, 3],
  "nested": {
    "property": "value"
  }
}

Common Errors:

{
  'invalid': 'single quotes',  // Error: Use double quotes
  "trailing": "comma",     // Error in standard JSON
  "missing": quote"        // Error: Invalid syntax
}

The validation report shows exactly where errors occur in your JSON.

Yes, our editor supports JSON5 with additional features:

{
  // Comments are allowed in JSON5
  name: 'Quotes are optional for strings',
  numbers: [1, 2, 3,], // Trailing commas allowed
  hex: 0xF1A7,        // Hexadecimal numbers
  infinity: Infinity,  // Special numbers
  multiline: 'This is a\
            multiline string'
}

These features make JSON5 more convenient for configuration files.

Here's a quick guide to using our editor:

1. Input JSON:

{
  "example": "Your JSON here"
}

2. Use Features:

• Format: Click 'Format' for proper indentation
• Validate: Real-time error checking
• Tree View: Navigate complex structures
• Search: Find specific values

3. Keyboard Shortcuts:

• Ctrl + S: Save
• Ctrl + Shift + F: Format
• Ctrl + Space: Auto-complete

Create and export JSON files in these simple steps:

1. Enter your data:

{
  "project": "My App",
  "version": "1.0.0",
  "settings": {
    "theme": "dark",
    "notifications": true
  }
}

2. Validate your JSON using our real-time checker
3. Format for readability
4. Click Export to download as a .json file

Your file will be saved with proper formatting and UTF-8 encoding.

Explore these official resources and learning materials:

Official Specifications:

• JSON Specification (RFC 8259) - Current IETF JSON standard
• ECMA-404 JSON Standard - ECMA International specification
• JSON Schema - JSON validation and documentation
• JSON Schema Specification - Schema validation rules

Learning Resources:

• MDN JSON Guide - Web development perspective
• JSON Style Guide - Google's JSON conventions
• Understanding JSON - Comprehensive tutorial

API Development:

• REST API Best Practices - JSON in API design
• JSON API Specification - Standardized JSON API format
• OpenAPI Specification - API documentation with JSON Schema

These resources cover JSON from basic syntax to advanced API design patterns!