Shadcn Alert Dialog: React Confirmation Dialogs That Prevent Mistakes
The shadcn alert dialog is a modal that interrupts the current flow and asks the user to confirm before something irreversible happens. Built with Radix UI and styled with Tailwind CSS, it traps focus, blocks interaction with the page behind it, and returns a clear answer, making it the standard react confirmation dialog pattern for delete buttons, sign-out prompts, and billing changes.
This page collects 16 copy-paste alert dialog examples for React, ranging from a minimal confirm prompt to destructive delete confirmations, warning layouts with icons, and dialogs that require typed confirmation. Every variant ships as TypeScript code you can drop into a Next.js or Vite project.
When to use the Shadcn Alert Dialog
Reach for an alert dialog when an action is destructive or hard to undo: deleting a record, cancelling a subscription, removing a team member, or discarding unsaved changes. Unlike a regular dialog, it is intentionally disruptive, so the user must choose between the cancel and action buttons before continuing.
If the content is informational or editable, a standard modal or a sheet is the better fit. Keep the alert dialog reserved for moments where a wrong click has real consequences, which keeps its interruption meaningful.
Design guidelines
- Name the consequence: Write titles like Delete this project? instead of Are you sure?, so users know exactly what they are confirming.
- Label buttons with verbs: Use Delete, Remove, or Sign out on the action button rather than OK or Yes, and keep Cancel as the safe default.
- Use destructive styling sparingly: A red action button signals danger. Reserve it for irreversible operations so the color keeps its warning value.
- Keep the copy short: One or two sentences of description are enough. Long legal text belongs on a separate page, not inside a confirmation prompt.
- Add friction only when justified: Typed confirmation, like asking the user to enter the project name, is appropriate for high-impact deletions but overkill for routine actions.
What makes this component useful
- Focus management for free: Focus moves into the dialog on open and returns to the trigger on close, with Escape and overlay behavior handled for you.
- Accessible by default: The role, labeling, and description wiring follow the WAI-ARIA alertdialog pattern without extra work.
- Owned code: The component lives in your repository, so you can restyle the overlay, animation, and footer layout with Tailwind CSS.
- Consistent confirmations: Using one react alert dialog component across an app keeps every destructive flow predictable for users.
Pairing with other components
Most alert dialogs open from a button or from a row action inside a data table, where delete confirmations are the classic use case. Inside a dropdown menu of row actions, wire the menu item to open the dialog rather than performing the action directly.
After the user confirms, a sonner toast is a good way to acknowledge the result, and an undo action inside that toast can soften truly destructive operations. You can see these patterns combined in the admin screens in our dashboard blocks.
Primitive support
The default shadcn/ui implementation wraps the Radix UI Alert Dialog primitive, which supplies the portal, focus trap, and keyboard behavior. The official shadcn docs cover installation with the CLI and the anatomy of the parts.
If your project runs on Base UI instead, the Base UI Alert Dialog exposes an equivalent unstyled API, and the examples on this page translate to it with minor prop renames. Either way the Tailwind CSS layer stays the same.