Data Mock Generator
Quickly generate customized JSON datasets for API prototyping and testing.
Define Schema
JSON Data Mock Generator
Create realistic, customized JSON datasets for your development projects in seconds. Perfect for early-stage prototyping, frontend testing, and API documentation.
Flexible Features for Modern Devs
Schema Designer
Easily add, remove, and rename fields to match your actual database schema or API specification.
Bulk Generation
Generate up to 100 rows of structured JSON data instantly to test your UI with realistic data volumes.
Smart Type Mapping
Built-in generator logic for IDs, names, emails, phones, and addresses ensures diversity in your results.
JSON Format
Outputs valid, beautified JSON that is ready to be used in frontend projects or as mock server responses.
Instant Prototyping
Stop wasting time manually writing mock data. Generate full datasets and start building features today.
Privacy & Speed
Generating data client-side is faster and more private. No server interaction means zero data storage.
How to Generate Mock Data
Define Your Fields
Add fields and select the type of data you want (e.g., Name, Email, Address).
Set Row Count
Choose how many individual objects you need for your testing scenario.
Generate Instantly
Click "Generate Data" to populate the output panel with synthesized results.
Copy to Project
Copy the resulting JSON array and paste it into your state managers or mock files.
Perfect For Early Development
UI Component Development
Test how your tables, lists, and cards look with varying data values.
API Response Simulation
Simulate backend payloads before the actual API endpoints are ready.
Common problems this tool solves
Creating Bulk User Data for Database Seeding
Easily create large datasets of synthetic users, addresses, and profiles for database testing and seeding.
Generating JSON Mock Data for Frontend Prototyping
Accelerate your UI development by generating realistic JSON datasets before your backend is even ready.
Visualize API Schemas with Mock JSON Data
Bridge the gap between design and implementation by visualizing your API schemas with realistic example data.