A mock API is a fake REST API that returns sample data for testing and development. Mock APIs let frontend developers, QA teams, and product managers test integrations without a real backend. apismaker lets you create mock APIs in 60 seconds from JSON, Excel, or CSV — no code required.

How do I create a mock API for free?

Sign up at apismaker.com, pick a template or import your data (JSON, Excel, CSV), and get instant REST endpoints. No code required. You can try our free mock API demo without signing up.

What is the best free mock API generator?

apismaker is a free mock API generator that lets you create REST APIs in 60 seconds. Import JSON, Excel, or CSV. No code required. Try the demo without signup.

How do I create a fake API for testing?

Use apismaker to create a fake API for testing. Import your data (JSON, Excel, CSV) or pick a template. Get instant REST endpoints. No backend required.

Can I turn Excel into an API?

Yes. apismaker converts Excel, CSV, and JSON files into REST APIs. Upload your file, map columns to entity fields, and get working endpoints in 60 seconds.

What is a no-code API builder?

A no-code API builder lets you create APIs without writing code. apismaker is a no-code API builder. Import data or use templates to get REST endpoints instantly.

How do I create a mock API for React or frontend development?

Use apismaker to create a mock API for frontend development. Get REST endpoints in 60 seconds. No backend needed. Test your React app against real-looking API responses.

Mock API for Frontend Development

March 4, 2026

Building a frontend before the backend is ready? A mock API lets you develop, test, and demo your UI with realistic data. No backend team required.

Why mock APIs for frontend?

Frontend developers often wait on backend APIs. With a mock API, you can build and test your React, Vue, Angular, or mobile app immediately. Use realistic data, test loading and error states, and demo to stakeholders without a live backend.

Create a mock API in apismaker

Sign up, pick a template (Users, Products, Todos), and get a working API in 60 seconds. The API supports GET, POST, PATCH, PUT, DELETE. Add your own data via JSON, Excel, or CSV upload.

Use in your frontend

Replace your backend URL with the apismaker API URL. Same REST interface — fetch, axios, or your data layer will work. When the real backend is ready, swap the URL.

Perfect for React and other frameworks

Whether you use React Query, SWR, Redux, or plain fetch, a mock API works the same. Test pagination, filters, and CRUD flows. Share the API with your team so everyone uses consistent data.

Mock API for Frontend Development

Why mock APIs for frontend?

Create a mock API in apismaker

Use in your frontend

Perfect for React and other frameworks

Try it yourself