JSON Helper Tool

Format, validate, minify, and convert JSON to TypeScript interfaces, Go structs, and Python classes.

JSON Tool

JSON Input

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Key Features

Format & Minify

  • Prettify JSON with customizable indentation
  • Minify for production-ready output
  • Real-time syntax highlighting

Validation

  • Real-time error detection
  • Detailed error messages with line numbers
  • Supports JSON5 and relaxed syntax

Conversion

  • Generate TypeScript interfaces
  • Create Go structs
  • Convert to Python classes

JSON Best Practices

  • Always use double quotes for property names
  • Validate JSON before processing in production
  • Use proper escaping for special characters
  • Consider size limits when working with large JSON files
  • Use consistent formatting for better readability

Common JSON Structures

Simple Object

{
  "name": "John Doe",
  "age": 30,
  "isActive": true,
  "address": {
    "street": "123 Main St",
    "city": "New York"
  }
}

Array of Objects

[
  {
    "id": 1,
    "product": "Laptop",
    "price": 999.99
  },
  {
    "id": 2,
    "product": "Phone",
    "price": 699.99
  }
]