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Fields

Generated Mock Response

{
  "status": 200,
  "data": {
    "id": 1,
    "name": "John Doe"
  }
}

What is API Mock Response Builder?

API Mock Response Builder is a free online tool that allows you to build mock API responses for testing. Create realistic JSON responses with customizable data.

Features

  • Build mock API responses
  • Add custom fields with different types
  • Set HTTP status codes
  • Copy or download JSON
  • 100% client-side

Frequently Asked Questions

Is this tool free to use?

Yes, API Mock Response Builder is completely free. No registration required.

Is my data secure?

All processing happens in your browser. Your data never leaves your device.