Tools Hub - 53+ Free Online Tools

Dummy JSON Generator

Generate realistic sample JSON data for testing, development, and prototyping. Create custom data structures with various field types.

JSON Structure

Define the fields for your JSON objects

idnumberRequired
namestringRequired
emailstring

Generation Settings

Configure output format and quantity

Generated JSON

Your generated dummy JSON data

Templates

Quick-start with predefined structures

Field Types

String: Text data (names, descriptions, etc.)
Number: Numeric values (IDs, prices, counts)
Boolean: True/false values (active, enabled, etc.)
Date: ISO date strings (YYYY-MM-DD format)
Array: Lists of values (tags, categories, etc.)
Object: Nested JSON objects

Usage Tips

API Testing: Generate mock data for REST API endpoints

Database Seeding: Create sample data for database testing

UI Development: Populate components with realistic data

Prototyping: Quickly test data structures and layouts

Features

Custom Fields

Define any JSON structure you need

Multiple Types

Support for all JSON data types

Validation

Real-time JSON validation

About Dummy JSON Generator

The Dummy JSON Generator creates realistic JSON data for testing, development, and prototyping. Generate arrays of objects with customizable schemas including names, emails, addresses, dates, numbers, and more. Perfect for populating databases, testing APIs, creating mockups, and developing applications without real data. All data is randomly generated and fictional.

Key Features

  • •Realistic Data Types: Names, emails, phone numbers, addresses, dates, URLs, and more
  • •Customizable Schema: Define your own JSON structure and field types
  • •Array Generation: Create arrays with specified number of items
  • •Nested Objects: Support for complex nested JSON structures
  • •Data Validation: Generated JSON is valid and ready to use
  • •Export Options: Copy, download, or use directly in your application

How to Use

  1. 1.Define your JSON schema or use a preset template
  2. 2.Specify field types (name, email, number, date, etc.)
  3. 3.Set the number of records to generate
  4. 4.Configure any nested objects or arrays
  5. 5.Click 'Generate' to create random JSON data
  6. 6.Copy or download the generated JSON for use in your project

What is it?

Dummy JSON data is randomly generated JSON (JavaScript Object Notation) that follows a specified schema but contains fictional information. It's used during development when real data isn't available or when you need large datasets for testing without privacy concerns. The generator uses algorithms to create realistic-looking data like names (from common name lists), emails (formatted correctly), phone numbers (following regional formats), and addresses (with proper structure). This allows developers to test application functionality, UI layouts, and data processing logic before integrating with real data sources.

Common Use Cases

  • •API Testing: Test REST APIs and GraphQL queries with realistic mock data
  • •Database Seeding: Populate development databases with test records
  • •Frontend Development: Build and test UI components without backend integration
  • •Load Testing: Generate large datasets to test application performance
  • •Demo Applications: Create realistic demos without exposing real customer data
  • •Documentation Examples: Provide example API responses in technical documentation

Privacy & Security

All generation happens entirely in your browser using client-side JavaScript. No data is transmitted to any server. Generated content remains private on your device.