This is a tool I built because I was tired of spinning up temporary Express servers every time I needed a mock API.

API Mock Server Builder (Enhanced) lets you create and manage mock endpoints through a clean web interface instead of juggling JSON files and random test servers. It’s built for real development workflows — whether you're building a frontend before the backend is ready, testing integrations, or simulating different API responses.

Instead of rewriting mocks again and again, you define them once and control everything from one place.

What you can do

• Create REST endpoints (GET, POST, PUT, PATCH, DELETE)
• Support dynamic routes like /users/:id
• Configure status codes, headers, and response bodies
• Add response delays and simulate network behavior
• Create multiple response variants per endpoint
• Switch between different scenarios (success, error, etc.)
• Match requests based on query params, headers, or body
• Generate dynamic/fake data in responses
• Test endpoints directly from the UI
• View request logs for debugging
• Import and export mock API setups

If you work with APIs often, this tool saves a lot of repetitive setup time and makes testing much easier.

It’s built to stay practical and powerful without becoming overly complex.