Alloy

Product managers spend too much time in the gap between idea and alignment — rough wireframes don't convey the real experience, and getting engineers to build a throwaway prototype wastes their time. Alloy is the first lifelike prototyping tool built specifically for product managers. It lets you import your existing screens and reassemble new flows using the same component libraries and design systems already in production — so prototypes look and behave like the real product from the start. Describe changes in plain language and refine them with an intuitive visual editor. Stakeholders get it immediately, customers can click through believable journeys, and engineers receive clearer component-level specifications. Share via link, collect feedback, and converge on the right solution in hours rather than weeks. Explore edge cases, empty states, and responsive breakpoints without rebuilding from scratch. Faster discovery, less rework, and better alignment on every feature.