🔌 API Response Mocker
Generate mock API responses for testing. Choose method, status code, format, add delay, and export as cURL.
About API Response Mocker
This tool helps developers generate realistic mock API responses for frontend development, testing, and documentation. No server needed — everything runs in your browser.
Features
- HTTP Methods: Supports all common methods (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS).
- Status Codes: Choose from 14 common status codes covering success, redirect, client error, and server error ranges.
- Formats: Auto-generates JSON or XML responses, or provide your own custom body.
- Delay Simulation: Add artificial latency to test loading states and race conditions.
- cURL Export: Get an equivalent cURL command for terminal testing.
Frequently Asked Questions
What is a mock API response?
A mock API response is a simulated server response used during development and testing. It allows frontend developers to build and test their applications without depending on a real backend server.
Can I customize the response body?
Yes! Leave the custom body field blank for an auto-generated response based on the selected status code and format, or paste your own JSON/XML to use that instead.
What does the delay simulation do?
The delay adds an artificial waiting period before the mock response is returned, simulating real network latency. This is useful for testing loading spinners, timeout handling, and async race conditions.
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