v0 by Vercel

v0 is an AI tool for building web interfaces from Vercel, the company behind the popular Next.js framework. From a plain sentence written in natural language it creates working components and entire pages. It suits developers who want to speed up their work, as well as beginners and founders who need to launch a website or app prototype quickly without deep coding knowledge.

It works like a chat: you write what you want to build (say a login form or a pricing table) and v0 instantly shows a live preview alongside the code. You refine it in ordinary conversation — you say something like "add a dark mode toggle" and the tool rewrites the affected part and refreshes the preview. The result is clean React code styled with Tailwind CSS and shadcn/ui components.