Mock Data Generator
Generate mock JSON data from JSON Schema, JSON structure, or completely random data locally in your browser.
FAQ
Is my data sent to a server?
No. All processing happens locally in your browser.
What types of data can be generated?
The generator supports strings, numbers, booleans, arrays, objects, and nested structures. You can provide either a JSON Schema or JSON data - if you provide JSON, it will automatically infer the schema and generate similar mock data.
Do I need a JSON Schema?
No! You can provide JSON data instead, or leave the input empty to generate completely random JSON data. The generator will analyze the structure and generate similar mock data with realistic values.
How does random generation work?
If you leave the input empty and click Generate, the tool will create a random JSON structure with various data types including objects, arrays, strings, numbers, booleans, and common formats like emails, dates, and UUIDs.