v0 Vercel Generative UI

v0 is Vercel's web-based AI tool for generating React components and landing pages from natural language descriptions. You describe a design in plain English—"a card component with an image, title, description, and CTA button"—and v0 outputs production-ready JSX using React, Tailwind CSS, and shadcn/ui. The tool uses Claude as its underlying LLM and understands web design conventions, accessibility standards, and modern component patterns. Unlike design tools (Figma), v0 outputs code, not mockups. Unlike traditional no-code builders, v0 respects developer workflows—you can import generated code into Git, iterate locally, and customize freely. It's positioned as a designer-developer collaboration tool that accelerates UI prototyping without removing agency from developers.