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What is v0 by Vercel?

v0 is Vercel's AI app builder that turns prompts into React and Next.js apps. What it builds, its plans checked in November 2026, and what to check at launch.

v0 is Vercel's AI app builder. You describe an interface or app, and v0 generates React and Next.js code, typically with Tailwind CSS and shadcn/ui, that you can edit visually, sync to GitHub and deploy to Vercel. On 9 November 2026 it had a free plan with daily message limits and paid plans from 30 dollars per user.

Published · Last updated

By Michal Měřínský. Audit methodology.

What v0 does

  • Generates user interfaces and full apps from text prompts, screenshots or designs.
  • Produces code in the Next.js and React ecosystem, using common component libraries.
  • Lets you refine by chatting or by editing visually in Design Mode.
  • Syncs to a GitHub repository and deploys to Vercel.

Plans

v0's pricing page on 9 November 2026:

  • Free: limited to 7 messages a day, with deployment to Vercel, Design Mode and GitHub sync.
  • Plus: 30 dollars per user a month, with monthly credits and daily login credits.
  • Business: 100 dollars per user a month.
  • Enterprise: custom. Hosting the deployed app is billed by Vercel under its own plans, and a commercial site needs Vercel Pro.

How it fits with Vercel

v0 and Vercel come from the same company, so a v0 project deploys to a Vercel URL with one click, and environment variables and domains are managed in the Vercel dashboard. Preview deployments get their own URLs. Keep them out of search and make sure canonicals point to your production domain once you connect it.

Who it suits

v0 is strongest for frontends: landing pages, dashboards and app interfaces in the React ecosystem. Because the output is ordinary Next.js code, developers can take it further in their own editor. For a full product, you still need a backend, authentication and a database, often Supabase or another service.

What to check before launch

  • Metadata: every route needs its own title and description, not one shared default.
  • Rendering: confirm important content is in the server-rendered HTML.
  • Secrets: API keys must stay in server-side environment variables, not in client components.
  • Headers: remove the X-Powered-By header and add security headers.
  • Accessibility: generated components can miss labels and keyboard support.

Generated code works on the happy path. Test forms with empty and unexpected input, and test logged-out access to every page that shows user data.

What a scan can and cannot tell you

WebAuditOS checks a v0-built site like any Next.js site: served versus rendered content, unique titles and descriptions, the X-Powered-By header, security headers and the rest of the technical basics.

It cannot review the generated code or your v0 project.

Many v0 projects ship with the same title on every route. The duplicate title check finds it in one scan.

Short answers

Is v0 free? There is a free plan limited to a few messages a day.

What does v0 generate? React and Next.js code, usually with Tailwind CSS and shadcn/ui.

Can I export the code? Yes, through GitHub sync, and continue in any editor.

Do I have to host on Vercel? Deployment is built around Vercel, but the code is portable.

In the product

The checks this maps to

Every check named here runs on every scan, on every plan - what a plan changes is how many pages are crawled, how long the history is kept and what you can do with the result. These are the ids the findings carry, so you can match a line in a report to the explanation above.

Hosting and deploy

How much does Vercel cost, and what does the free plan include?

Vercel plans checked in November 2026: what the free Hobby plan includes and forbids, what Pro costs, how usage billing works, and how to avoid surprise bills.

Hosting and deploy

What is Next.js?

Next.js is a React framework for full web apps with routing, server rendering and APIs. What it adds to React, how rendering works, and what to check at launch.