v0 by Vercel

v0 is Vercel's AI-powered UI generation tool that creates production-ready React and Tailwind CSS components from text descriptions or uploaded screenshots. It was designed specifically for the Next.js and React ecosystem, and its output integrates directly into Vercel-deployed projects with a single click — making it the fastest path from design idea to working frontend code.

The generation quality is genuinely impressive for standard UI patterns: landing pages, dashboards, pricing tables, authentication forms, and data tables all come out clean and well-structured. The component code uses shadcn/ui as its component library, which has become the dominant choice in the React community, meaning generated code fits naturally into most modern Next.js stacks without modification.

The free tier includes 200 credits per month, which is enough for regular personal use. Paid plans start at $20/month for higher limits. v0's main limitation is scope — it excels at frontend UI but has no understanding of backend logic, database schemas, or API design. For full-stack generation from a prompt, Bolt.new or Lovable are better choices. For polished frontend components that slot into an existing codebase, v0 is the clear leader.