Free Developer Tools

Mock API from JSON Generator

Instantly generate mock API service responses, status codes, fetch snippets, and request interception scripts from sample JSON.

100% Client-Side Processing

Real-Time Processing

Offline Support

HTTP Method

API Endpoint Path

Status Code

Response Delay (ms)

Response Body Template (JSON)

Generated Fetch Interceptor Code

Mock code will appear here after generation

Frequently Asked Questions

Everything you need to know about generating local mock API responses.