Proto.io

Proto.io is a web-based platform that allows designers and developers to create interactive, high-fidelity prototypes of websites and mobile apps without needing coding skills. It offers user-friendly tools to visualize how an app or website will work, including animations, transitions, and interactive features. This helps teams test ideas, gather feedback, and refine designs before development, saving time and resources. Essentially, Proto.io acts as a virtual model of a digital product, enabling stakeholders to experience and evaluate the user interface early in the design process.