Alloy

Alloy is an AI-powered prototyping platform that enables product managers and teams to modify real product UI using their existing codebase and components, letting users capture a product from the browser and make changes through chat-based prompts. It offers browser or codebase connection for capturing existing products, AI-driven prototyping via chat, and a live preview in a sandbox environment. Alloy supports cloud-based sharing through shareable links, GitHub and pull-request integration for pushing changes into production code, and integrations with more than 20 SaaS tools and MCP connectors. It includes model selection between Claude and ChatGPT, inline commenting for feedback, and a recently launched 'bring your own subscription' option to reduce Alloy credit usage. The platform is used by companies including Amazon, Rewind, and Redis, with regular feature launches. Pricing is freemium, with a free tier to start and paid plans for expanded usage.