What Is Prototype?

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Prototype

Decorative holographic 3D box with blue glow

In one line

A prototype is a clickable model of a product that simulates how it works, so you can test ideas with users before building.

A prototype is an interactive version of a design that lets people click through screens as if using the real product. Prototypes range from low-fidelity linked wireframes to high-fidelity designs with realistic content and animation, usually built in tools like Figma.

Why it matters

Prototypes let you test whether a flow works, pitch an idea to investors or stakeholders, and give developers a clear reference, all before writing production code. Finding a problem in a prototype costs far less than finding it after launch.

How it works

Designers link screens together around the key tasks, add the interactions and states that matter (such as errors, loading and empty states), and share the prototype for review or usability testing. Feedback is fed back into the design until the flow is ready to build.

Common mistakes

Prototyping every screen instead of the flows you need to test.
Only showing the happy path and skipping errors and empty states.
Making it so polished that people assume it is already built.
Building a prototype and never testing it with real users.

How Design Monks approaches it

Design Monks builds prototypes around the questions you need answered, from quick concept flows to high-fidelity prototypes for testing and investor demos. We also offer AI prototyping when speed matters more than polish.