Justinmind UI Prototyper

Justinmind is a free, user‑friendly prototyping platform that lets designers create interactive wireframes and high‑fidelity prototypes for both web and mobile applications. Drag‑and‑drop components, link screens, add animations, and test flows without writing code. Export prototypes for stakeholder reviews, generate specifications, and collaborate in real time. Ideal for rapid iteration and turning ideas into clickable demos.