v0

v0 とは？

v0 is an AI app builder from Vercel that generates web interfaces and applications from text prompts, screenshots or design ideas. It produces React code, commonly using Next.js, Tailwind CSS and shadcn/ui components, and shows a live preview you can refine through chat. v0 is well suited to front-end developers, designers and product teams who want production-style UI code rather than a mockup. Its main difference is how closely it fits the Vercel and Next.js ecosystem: generated projects follow common modern React conventions, can be deployed to Vercel directly, and can be connected to a GitHub repository so the code continues to live in a normal development workflow.

v0 の主な機能

• Prompt to UI

  Generates React interfaces from text descriptions.

• Image input

  Uses screenshots or mockups as a reference for the layout.

• Modern React stack

  Produces code using Next.js, Tailwind CSS and shadcn/ui conventions.

• Live preview

  Renders the result so you can test it while iterating.

• Vercel deployment

  Deploys projects to Vercel from inside v0.

• GitHub integration

  Connects projects to a GitHub repository for version control.

v0 の使い方

1. 01Sign in to v0 with a Vercel account.
2. 02Describe the interface or app you want, or upload a screenshot as a reference.
3. 03Review the preview and ask for changes in follow-up messages.
4. 04Inspect and edit the generated code in the built-in code view.
5. 05Deploy to Vercel or connect a GitHub repository to continue development.

v0 のユースケース

• UI component drafts

  Generate a starting point for dashboards, forms or settings pages.

• Screenshot to code

  Recreate a layout from an image as editable React code.

• Next.js prototypes

  Build and deploy a working prototype on Vercel quickly.

• Design exploration

  Try several layout variations before committing to one.

v0 のメリットとデメリット

v0 に関するよくある質問