Question 1

What is a mock API?

Accepted Answer

A mock API is a fake server endpoint that returns predefined responses. It's used during frontend development so the UI can be built and tested before the real backend is ready, or for demos, prototypes, tests, and documentation examples.

Question 2

Is this a real hosted mock service?

Accepted Answer

No. This tool generates ready-to-use mock data (JSON, XML, status codes, headers, latency) that you copy into your own mock service, such as json-server, MSW, Mirage.js, WireMock, Postman Mock Server, or any in-app stub. The data is generated in your browser, no server involved.

Question 3

Can I use the generated JSON in code?

Accepted Answer

Yes. The generated JSON is valid and ready to paste into your project. Many developers use it as a fixture in Jest, Vitest, Cypress, or as the response body in MSW handlers, Postman mocks, or json-server routes.

Question 4

Does this tool save my data?

Accepted Answer

No. Everything runs locally in your browser. No requests are sent and no data is stored. You can disconnect from the internet after loading the page and it still works.