V0 by Vercel

V0 by Vercel is an AI-powered UI code generator creating production-ready React and Next.js components from plain English prompts. Generates React + Tailwind components based on descriptions. Features Design Mode for visual editing and GitHub sync. Token-based pricing where input/output tokens convert to credits. Free plan provides $5 monthly credits. Describes UI in plain English, get working components or entire apps. Primarily frontend-focused tool - doesn't generate backend logic, APIs, or database layers. Credits can burn rapidly on complex projects. Premium plan ($20/mo) described as sweet spot for serious building. Team plan ($30/user/mo) for collaboration.