# Login Screen V0 Template: Wire to Clerk, Supabase or NextAuth

- Tool: V0 Templates
- Last updated: July 2026

## TL;DR

The Login Screen v0 template gives you a centered shadcn/ui Card with email and password inputs, a show/hide password toggle, a loading submit button, an error alert, and a forgot-password link — all wired with react-hook-form and Zod. Fork it in one click, brand it in Design Mode, then use the prompt pack to connect it to Clerk, Supabase Auth, or any auth provider in under an hour.

## Frequently asked questions

### Is the Login Screen v0 template free to use?

Yes. All v0.dev community templates are free to fork with a free account. The generated code has no licensing fees. shadcn/ui, react-hook-form, and Zod are all MIT-licensed.

### Can I use this template commercially in a paid product?

Yes. The code V0 generates is yours to use commercially without restriction. You're using standard open-source libraries (shadcn/ui, react-hook-form, Zod) — all MIT. Just don't republish the template on v0.dev community as an original creation.

### Why does my fork break in V0 preview when I add Supabase?

V0's preview sandbox resolves packages through esm.sh. The @supabase/ssr package sometimes fails to resolve there, showing 'Import Error | Failed to load from blob...'. This is a sandbox limitation only — the code works correctly after deployment to Vercel. Click Share → Publish to Production and test the login flow on the deployed URL.

### Which auth provider should I use — Clerk or Supabase Auth?

Clerk is faster to set up (3-4 lines of code, hosted UI components) and has better social auth support out of the box. Supabase Auth is better if you're already using Supabase for your database — everything lives in one project with shared RLS policies. For a pure UI fork with no backend yet, try Clerk first.

### How do I add a Forgot Password page?

The 'Forgot password' link is a plain anchor in the template. Prompt V0: 'Add a /forgot-password page with an email input and a submit button; on submit call supabase.auth.resetPasswordForEmail(email, { redirectTo: siteUrl + "/auth/callback?next=/update-password" }); show a confirmation message.' This creates the page and wires the Supabase password reset flow.

### Why does the Remember Me checkbox cause an SSR error?

V0 sometimes places localStorage.getItem() in the component body, which runs during Next.js server-side rendering where localStorage doesn't exist. Wrap all localStorage reads in a useEffect hook with an empty dependency array — this ensures they only run in the browser after the component mounts.

### Can RapidDev connect this Login Screen to my auth provider?

Yes. RapidDev wires your V0 login screen to Clerk or Supabase Auth, adds protected route middleware, configures the OAuth callbacks, and delivers a complete working auth flow — usually in 1–2 days.

### How do I add a Sign Up page to match this Login Screen?

Prompt V0: 'Add a /signup page that mirrors the Login Card layout but with email, password, and confirm-password fields; wire it to the same auth provider; add a "Already have an account? Sign in" link below the Submit Button.' V0 generates the page and links both directions.

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Source: https://www.rapidevelopers.com/v0-template/login-screen
© RapidDev — https://www.rapidevelopers.com/v0-template/login-screen