JSON Schema Generator

Generate JSON Schema from sample JSON data automatically. Create validation schemas for API documentation and data validation.

Sample JSON Data

Provide JSON to generate schema from
🔧 All JSON Tools

Generated JSON Schema

Your auto-generated JSON schema

Key Features

📝 Automatic schema generation from sample data
🎯 Multiple JSON Schema draft versions
📊 Smart type and constraint detection
⚙️ Configurable generation options
💾 Download schemas as JSON files
🔒 Privacy-focused (local processing)

What is JSON Schema Generation?

Automatically create validation rules and structural definitions from sample JSON data. Generate comprehensive schemas for API validation, data contracts, and type definitions with smart type inference and constraint detection.

⚡ Quick Start

  1. Paste your sample JSON data
  2. Select schema draft version
  3. Configure generation options
  4. Generate and download schema

🎯 Best For

  • API contract definition
  • Data validation rules
  • Type definition generation
  • Form validation schemas