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JSON Formatter + AI Data Generator

Beautify, minify, validate JSON + generate realistic test data with one click. Perfect for API testing, debugging, and development.

Indent:

Generate Realistic Test Data

Click any button to generate realistic JSON data instantly

Input JSON (3 lines)

Output (3 lines)

{
  "hello": "world"
}

Valid JSON - Ready to use

💡 Pro Tips:

• Use Beautify to format minified JSON for readability
• Use Minify to compress JSON for APIs and reduce payload size
• Click Validate to check JSON structure and get metadata
• Generate realistic test data for quick prototyping and testing
• All processing happens in your browser - no data sent to servers