What is v0?

v0 is an AI tool that generates user interface code for you. You describe what you want in plain English, and v0 writes the actual React code. It was created by Vercel in 2024 and has become one of the most popular AI code generation tools for building web interfaces.

The way it works is simple. You type something like “create a pricing table with three tiers” and v0 generates a complete React component with Tailwind CSS styling. You can see the preview immediately and iterate by chatting with it. “Make the middle tier highlighted” or “add a toggle for monthly vs yearly pricing.” Each response updates the code in real time.

v0 specifically generates code using React, Next.js, Tailwind CSS, and shadcn/ui components. This stack is extremely popular in the front-end community, which is part of why v0 took off so quickly. The generated code is production-ready. You can copy it directly into your project or push it to GitHub.

The free tier gives you 200 monthly credits, which is enough for prototyping and experimenting. Each generation uses 1-5 credits depending on complexity. For individual developers and side projects, the free tier works well. Paid plans are available for heavier usage.

v0 is particularly good for dashboards, landing pages, marketing sites, and UI components. It accelerates the initial scaffolding and first drafts. But it’s not a replacement for developers. You still need to integrate the components into your application, handle the business logic, test everything, and optimize performance.

One interesting aspect of v0 is that you can publish and deploy your application directly from the tool without ever pulling the code down locally. This makes it a hybrid between low-code platforms and traditional development. You get the speed of low-code with the flexibility of real React code that you can export and customize.

I haven’t used v0 myself, but I’ve used Claude Code extensively for building React applications. The vibe coding approach where you describe what you want and the AI generates code is powerful. v0 seems to take that same concept but specifically optimized for UI generation with instant previews.