100% Free • Express.js Ready

Mock API Generator
Test Without Backend

Generate mock API servers with Express.js. Create REST API endpoints with custom responses, status codes, delays, and realistic test data.Perfect for frontend development and testing without a real backend.

Generate Mock APISee Features
Multiple Endpoints
Custom Responses
Status Codes
Network Delays

Quick Templates

API Endpoints

Best Practices

  • Use realistic data structures that match your production API
  • Add appropriate delays to simulate network latency
  • Include error responses to test error handling
  • Use proper HTTP status codes
  • Add pagination for list endpoints
  • Include CORS headers for frontend development
  • Version your API endpoints (e.g., /api/v1/users)
  • Use RESTful conventions for endpoint design
  • Document your mock API endpoints
  • Test your application with both success and error responses

Powerful Features

Everything you need to create mock APIs

Multiple Endpoints

Create as many API endpoints as you need with different HTTP methods and response structures.

Realistic Responses

Add delays to simulate network latency and use realistic JSON data structures for testing.

Quick Templates

Start with pre-built templates for users, errors, paginated lists, and more.

Deploy Real APIs

Ready to deploy your real API? Use Server Compass to deploy Node.js, Python, and Go APIs with monitoring.

Try Server Compass