Alloy
AI prototyping with your real app
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Alloy is an AI prototyping tool that builds concepts on top of a team's real application rather than a blank canvas. The user captures their live app from the browser, describes a feature or change through AI chat, and Alloy produces pixel-perfect, interactive prototypes that look and behave like the actual product.
Because the prototype starts from the real UI, stakeholders and customers see a proposed change in context, which makes feedback more concrete than reacting to a wireframe.
It is aimed at product and design teams who want to test ideas quickly against their existing product and share realistic concepts without building them in code first.
AI-assisted draft, human-reviewed before publishing — see how we choose & review tools.
Why we picked it
Alloy made the cut for capturing your real live app as the starting point instead of a blank canvas — a pixel-perfect prototype that actually looks and behaves like the product is worth naming for getting stakeholder buy-in, since a generic mockup never convinces the way the real thing does.
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