JSON Generator Documentation - JSON Tools

The JSON Generator is a powerful tool that helps you create sample JSON data using templates and schemas. Perfect for testing, development, and prototyping, it allows you to quickly generate realistic JSON data structures.

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Features

  • Template-based Generation - Create JSON data using customizable templates
  • Schema Support - Generate data based on JSON Schema definitions
  • Data Types - Support for strings, numbers, arrays, objects, and more
  • Random Data - Generate random values within specified constraints
  • Custom Functions - Use built-in functions for dynamic data generation
  • Batch Generation - Create multiple JSON objects at once

How to Use

Basic Generation

  1. Select a template or create your own
  2. Configure the generation options
  3. Click "Generate" to create the JSON data
  4. Copy or download the generated result

Advanced Options

  1. Use schema definitions for structured data
  2. Configure data type constraints
  3. Set array sizes and object properties
  4. Apply custom generation functions

Example

Here's an example of a template and its generated output:

Template:

{
  "users": [
    {{repeat(3)}}
    {
      "id": {{index()}},
      "name": {{name()}},
      "email": {{email()}},
      "age": {{number(20, 50)}},
      "isActive": {{boolean()}}
    }
  ]
}

Generated Output:

{
  "users": [
    {
      "id": 0,
      "name": "John Smith",
      "email": "john@example.com",
      "age": 32,
      "isActive": true
    },
    {
      "id": 1,
      "name": "Jane Doe",
      "email": "jane@example.com",
      "age": 28,
      "isActive": false
    },
    {
      "id": 2,
      "name": "Mike Johnson",
      "email": "mike@example.com",
      "age": 45,
      "isActive": true
    }
  ]
}
JSON Generator

Template Functions

Basic Functions

  • number(min, max) - Generate a random number
  • string(length) - Generate a random string
  • boolean() - Generate a random boolean
  • array(min, max) - Generate an array of random length

Special Functions

  • name() - Generate a random person name
  • email() - Generate a random email address
  • date() - Generate a random date
  • uuid() - Generate a UUID

Tips & Tricks

  • Template Reuse - Save commonly used templates for quick access
  • Nested Objects - Use dot notation for nested property access
  • Array Generation - Use repeat() for creating arrays of objects
  • Data Constraints - Set min/max values for consistent data
  • Custom Types - Create custom types for specific data needs

Common Issues

Template Syntax

  • Missing or mismatched braces
  • Incorrect function parameters
  • Invalid property names
  • Unclosed string literals

Data Generation

  • Out of range values
  • Invalid data type combinations
  • Circular references
  • Memory limitations for large datasets

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