Alloy recently launched!

Launch YC: Alloy · AI Prototyping for Product Managers

"Prototype with your real product"

TL;DR: Capture your product from the browser and make changes with chat

Founded by Simon Kubica & Christian Iacullo

Image Credits: Alloy

AI prototyping built for professional teams

Alloy is the world’s first tool for prototypes that look exactly like your product:

➤ Capture your product from the browser in one click
➤ Chat to build your feature ideas in minutes
➤ Share a link with teammates and customers
➤ 30+ integrations: Linear, Notion, Jira Product Discovery, and more

The story behind Alloy

Simon co-founded the company with Christian after their time working at Canva and Atlassian. They founded the company with one mission: give product leaders new superpowers.

Initially, they focused on the workflow of planning and prioritization. But with AI, they started to notice PMs could finally do the work, rather than just plan it. They completely re-oriented the company to build a dedicated tool for this new PM workflow.

The problem is that even with new AI app builder tools, PMs are struggling with off-brand prototypes. Using chat to prototype is powerful, but the outputs didn’t look anything like their existing app.

They felt that your prototypes should look like your actual product.

So starting today, they actually can.

The fastest-growing AI prototyping tool of 2025

Image Credits: Alloy

Product leaders at top companies have signed up shockingly fast:
➤ 42% of the Forbes Cloud 100
➤ 17% of the Fortune 500
➤ Growing usage at Harvey, Hubspot, Canva, SeatGeek, Linktree, and thousands more

Today they are launching to bring the power of Alloy to the YC community.

Ready to try the future of prototyping?

Alloy takes 30 seconds to set up:

  • Add the browser extension
  • Capture your product from the browser
  • Send a message with your idea or drop in your product requirements doc

The team couldn’t be more excited to hear what you think!

Learn More

🌐 Visit alloy.app to learn more.
👉 Interested in Alloy? Add the browser extension here!
👣 Follow Alloy on LinkedInX.

Posted 
November 5, 2025
 in 
Launch
 category
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