Marvel is a free prototyping and testing tool available for Mac users, designed to enhance the design workflow from ideation to handoff. It offers an intuitive interface that allows users to create interactive prototypes with ease, enabling designers to visualize their ideas effectively. Marvel also supports user testing, making it easier to gather feedback and iterate on designs before finalizing them.

In addition to prototyping, Marvel facilitates seamless collaboration between design teams and stakeholders. It includes features for sharing projects, commenting, and providing feedback directly within the platform. This ensures that everyone involved in the project is on the same page, ultimately improving the efficiency of the design process.