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JSON Schema to Mock Data
Generate realistic mock data from JSON Schema. Perfect for testing APIs, prototyping, and development.
JSON Schema
Generated Data
How to Use
- Paste your JSON Schema in the left panel (or click "Load Example")
- Set the number of items to generate (1-100)
- Optionally set a seed for reproducible results
- Enable/disable realistic names and null values
- Click "Generate" to create mock data
- Copy or download the generated JSON
Supported Formats
email
john.doe@example.com
uuid
550e8400-e29b-41d4-a716-...
date
2024-03-15
date-time
2024-03-15T10:30:00Z
uri / url
https://api.example.com/path
ipv4
192.168.1.100
Features
- ✓Supports common JSON Schema features
- ✓Smart property name inference
- ✓Realistic names, emails, addresses
- ✓Seeded random for reproducibility
- ✓Generate 1-100 items at once
- ✓Handles nested objects and arrays
- ✓Copy and download output
- ✓100% client-side processing