Alloy

Overview

Alloy is an AI prototyping platform designed specifically for product managers, enabling teams to clone their existing web application or product, iterate on it through conversational AI, and share high-fidelity prototypes with stakeholders in minutes. Founded in Sydney, Australia in 2023 and operated by Index Technologies Pty Ltd, Alloy distinguishes itself from conventional prototyping tools by working directly with your real product—including its codebase, components, and design system—rather than forcing teams to rebuild from static screenshots or blank canvases.

At its core, Alloy offers two primary entry points: a browser extension that captures any live page of your product with zero setup, and a codebase connection that allows the AI agent to run your entire application in a sandboxed environment and write production-grade code. Once captured, product managers can use natural language chat prompts to modify the UI, explore feature ideas, restructure flows, or redesign pages—all while maintaining visual consistency with the existing design system. The platform supports multi-page product cloning, cloud-based sessions that can be launched in parallel by any team member, and a suite of 20+ integrations that connect Alloy to where product ideas already live, including insights tools, customer feedback platforms, and developer workflows.

Alloy goes beyond static mockups. Every session runs your application live in the cloud, allowing changes to be previewed in a real browser environment. Team members and external stakeholders can leave inline comments pinned to specific elements and pages, keeping feedback contextual and actionable. When the prototype is ready, Alloy converts the work into production-ready code that can be exported, accessed via MCP (Model Context Protocol) connectors, or pushed directly to a GitHub pull request—eliminating the traditional handoff between product and engineering. The platform also supports model selection across leading LLMs, bring-your-own-subscription options for existing Claude or ChatGPT plans, and one-click export to Figma.

Purpose-built for enterprise deployment, Alloy treats security as an engineering standard, with data protection measures embedded throughout the platform. Pricing is straightforward: a free tier for getting started and a Pro plan at $20 per seat per month. For product teams seeking to compress the distance between idea and shipped feature, Alloy provides the infrastructure to prototype, validate, and deliver with unprecedented speed.

Core capabilities

One-Click Product Capture

Install the browser extension to clone any live page of your product instantly, with no setup required.

Codebase Connectivity

Connect your existing codebase to let Alloy run your entire application and write production code within your real architecture.

Conversational AI Prototyping

Prompt changes using natural language chat; the AI agent modifies your product while preserving your design system and component library.

Multi-Page Product Cloning

Capture and clone multiple pages of your web app to prototype complex flows and user journeys.

Cloud Sessions & Live Preview

Every session runs in the cloud and lets you preview changes in a sandboxed browser environment; sessions can be shared via link with teammates or customers.

Production-Ready Code Export

Export every session, access it via MCP connectors, or convert it into a GitHub pull request for direct rollout.

20+ Integrations

Connect Alloy to SaaS tools, customer feedback platforms, and idea pipelines to build directly from real insights.

Inline Contextual Comments

Pin feedback to specific elements and pages so stakeholders can review prototypes with element-level context.

Model Selection & BYO Subscription

Choose the optimal LLM per prompt—comparing cost, speed, and intelligence—or power sessions with your existing Claude/ChatGPT subscription.

Figma Export

Export your Alloy prototype to Figma for continued design collaboration.

Use cases

Rapidly prototyping new features on top of an existing product and validating them with stakeholders before writing traditional specs.

Redesigning web app interfaces while automatically maintaining brand consistency through the existing design system.

Converting customer feedback and product insights from integrated tools into concrete, interactive prototypes.

Shortening the product-to-engineering handoff by generating production code and pushing changes as GitHub pull requests.

Running parallel prototyping sessions in the cloud so multiple team members can explore diverse product directions simultaneously.

Evaluating model performance by comparing cost, speed, and intelligence across leading LLMs for each prototyping prompt.