The Second Step That Secures Your Login
Two-step verification asks users to prove their identity twice: once with a password and once with a short one-time code delivered by email, SMS, or an authenticator app. This block covers the second half of that flow as a ready-made screen, centering a compact card where the user enters the code, confirms it, or requests a fresh one.
As a block, it slots into the gap that most authentication tutorials skip. Login forms are everywhere, but a polished, theme-aware code entry screen with sensible resend and confirmation states is usually built last and rushed. Shipping it prebuilt keeps the security step as refined as the rest of your authentication flow.
Products That Need a Verification Screen
Any product holding sensitive data benefits: banking and fintech apps, SaaS admin panels, healthcare portals, and e-commerce accounts with stored payment methods. Many teams also gate high-risk actions, such as changing an email address or withdrawing funds, behind a second verification even when the initial sign-in did not require one.
The screen naturally follows a login page, but it also works standalone for passwordless flows where the emailed code is the only credential.
Technology Foundation
The block is a React component styled with Tailwind utilities and composed from Shadcn UI primitives, keeping the markup small and the dependencies minimal. The layout centers a single card with the code entry area, primary action buttons, and supporting text for resend and confirmation states.
Because it is purely a presentation layer, it stays agnostic about how codes are generated and checked. Whether your backend uses TOTP, emailed codes, or SMS through a messaging provider, the screen simply collects input and hands it to your verification endpoint.
Colors, Tokens, and Themes
Every surface in the block reads from the Shadcn UI token system described in the theming documentation: card, border, muted-foreground, and friends are CSS variables defined in globals.css. Restyling the screen for your brand means editing those variables once rather than hunting through the component.
Light and dark mode are both first-class. No color is hardcoded, so the class-based theme toggle flips the entire screen, including focus states on the code inputs, without extra work.
Install Paths for React, Vuejs, and Svelte
The block ships in React, Vuejs, and Svelte versions, with the Vuejs edition building on the shadcn-vue port and the Svelte edition on shadcn-svelte. Each version uses its framework's idiomatic form handling, so the code feels native wherever you deploy it.
To integrate, run the shadcn CLI command shown at the top of the example page, with tabs for npm, pnpm, yarn, and bun, or copy the source from the code tab. This is a pro block, so both routes are unlocked by the All Access plan. After installation, point the confirm action at your verification API and the resend action at your code delivery endpoint.