Prototypes that look exactly like your product Meet Alloy, the AI prototyping tool that recreates your real UI, and looks exactly like your product.
Why teams switch to Alloy
One-click capture your product from the browser
Chat to build: describe a feature and create a working prototype in minutes
Share instantly with stakeholders and customers
Works with all your tools: 30+ PM integrations including Linear, Notion, and Jira Product Discovery
Built by product leaders, for product leaders
I’m Simon Kubica, co-founder & CEO. I built Alloy with Christian Iacullo. After tours at Canva and Atlassian, we decided to start Alloy to hand PMs a new superpower: shipping clarity, not slides.
We watched “AI app builders” miss the mark—great at speed, bad at fidelity. Stakeholders saw off-brand screens and tuned out. So we flipped the script: start from your real product, then let AI extend it.
What's unlocked
Prototypes that match your design system out of the box
3–5× more detail when you begin from your existing product
No more apologizing for the look and feel in demos
The fastest growing AI prototyping tool of 2025 Adoption has been fast across leading companies:
42% of the Forbes Cloud 100
17% of the Fortune 500
Expanding use at Harvey, HubSpot, Canva, SeatGeek, Linktree, and thousands more
Get started in 30 seconds
Install the Alloy browser extension
Capture your product from the page you’re viewing
Drop in your idea or PRD
We built Alloy so your prototypes can look exactly like the real thing. Try it for free today, and let me know what you think!
