v0 is an AI tool from Vercel that builds user interfaces and full-stack web apps from a description in plain language.
In plain words
You describe your idea in a chat, v0 generates an app, and you review it and ask for changes. It can connect to databases and outside services when you ask it to. When the app is ready, you can publish it on Vercel's hosting in one step, or, if the project is linked to GitHub, go through a pull request so the code can be reviewed first.
A quick example
Imagine a designer has a mockup of a sign-up form. They describe it to v0, which builds a working version. They ask it to save each entry to a database, check the result, then publish the page for real users.
Where you'll meet it
- Turning mockups into working interfaces.
- Landing pages, dashboards and online stores.
- Quick prototypes for product teams.
Related
Sources
- DocsWhat is v0?, v0 Docs (Vercel) · read 22 Oct 2026
- DocsQuickstart, v0 Docs (Vercel) · read 29 Sept 2026
Checked by WhatIsAI against the sources above · 22 Oct 2026. Spotted an error? Report it.