Alert Dialog

A modal that halts the flow for destructive actions — delete, sign out, discard — with the neobrutalist borders-and-shadows treatment.

import {
  AlertDialog,
  AlertDialogAction,

The alert dialog interrupts the user with a modal that requires an explicit choice — clicking outside won't dismiss it. Built on the Base UI Alert Dialog component and styled to the neobrutalist recipe: thick borders, hard shadows, and bold type.

Reach for it when:

Destructive confirmations — delete an account, remove a team member, wipe a project.
Irreversible operations — publish, send, submit; anything without an undo.
Unsaved-changes guards — warn before navigating away from a dirty form.

Installation


pnpm dlx shadcn@latest add https://neobrutalism.com/r/base/alert-dialog.json
npx shadcn@latest add https://neobrutalism.com/r/base/alert-dialog.json
yarn dlx shadcn@latest add https://neobrutalism.com/r/base/alert-dialog.json
bunx --bun shadcn@latest add https://neobrutalism.com/r/base/alert-dialog.json

Install the following dependencies:


pnpm add @base-ui/react
npm install @base-ui/react
yarn add @base-ui/react
bun add @base-ui/react

Copy and paste the following code into your project.

components/ui/alert-dialog.tsx

"use client"

import * as React from "react"
import { AlertDialog as AlertDialogPrimitive } from "radix-ui"

import { cn } from "@/lib/utils"
import { Button } from "@/components/ui/button"

function AlertDialog({
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Root>) {
  return <AlertDialogPrimitive.Root data-slot="alert-dialog" {...props} />
}

function AlertDialogTrigger({
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Trigger>) {
  return (
    <AlertDialogPrimitive.Trigger data-slot="alert-dialog-trigger" {...props} />
  )
}

function AlertDialogPortal({
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Portal>) {
  return (
    <AlertDialogPrimitive.Portal data-slot="alert-dialog-portal" {...props} />
  )
}

function AlertDialogOverlay({
  className,
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Overlay>) {
  return (
    <AlertDialogPrimitive.Overlay
      data-slot="alert-dialog-overlay"
      className={cn(
        "fixed inset-0 z-50 bg-foreground/20 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogContent({
  className,
  size = "default",
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Content> & {
  size?: "default" | "sm"
}) {
  return (
    <AlertDialogPortal>
      <AlertDialogOverlay />
      <AlertDialogPrimitive.Content
        data-slot="alert-dialog-content"
        data-size={size}
        className={cn(
          "group/alert-dialog-content fixed top-1/2 left-1/2 z-50 grid w-full -translate-x-1/2 -translate-y-1/2 gap-4 rounded border-2 bg-popover p-4 text-popover-foreground shadow-md duration-100 outline-none data-[size=default]:max-w-xs data-[size=sm]:max-w-xs data-[size=default]:sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
          className
        )}
        {...props}
      />
    </AlertDialogPortal>
  )
}

function AlertDialogHeader({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-dialog-header"
      className={cn(
        "grid grid-rows-[auto_1fr] place-items-center gap-1.5 text-center has-data-[slot=alert-dialog-media]:grid-rows-[auto_auto_1fr] has-data-[slot=alert-dialog-media]:gap-x-4 sm:group-data-[size=default]/alert-dialog-content:place-items-start sm:group-data-[size=default]/alert-dialog-content:text-left sm:group-data-[size=default]/alert-dialog-content:has-data-[slot=alert-dialog-media]:grid-rows-[auto_1fr]",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogFooter({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-dialog-footer"
      className={cn(
        "-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t-2 bg-muted/50 p-4 group-data-[size=sm]/alert-dialog-content:grid group-data-[size=sm]/alert-dialog-content:grid-cols-2 sm:flex-row sm:justify-end",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogMedia({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-dialog-media"
      className={cn(
        "mb-2 inline-flex size-10 items-center justify-center rounded-md bg-muted sm:group-data-[size=default]/alert-dialog-content:row-span-2 *:[svg:not([class*='size-'])]:size-6",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogTitle({
  className,
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Title>) {
  return (
    <AlertDialogPrimitive.Title
      data-slot="alert-dialog-title"
      className={cn(
        "font-head text-base font-medium sm:group-data-[size=default]/alert-dialog-content:group-has-data-[slot=alert-dialog-media]/alert-dialog-content:col-start-2",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogDescription({
  className,
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Description>) {
  return (
    <AlertDialogPrimitive.Description
      data-slot="alert-dialog-description"
      className={cn(
        "text-sm text-balance text-muted-foreground md:text-pretty *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
        className
      )}
      {...props}
    />
  )
}

function AlertDialogAction({
  className,
  variant = "default",
  size = "default",
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Action> &
  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
  return (
    <Button variant={variant} size={size} asChild>
      <AlertDialogPrimitive.Action
        data-slot="alert-dialog-action"
        className={cn(className)}
        {...props}
      />
    </Button>
  )
}

function AlertDialogCancel({
  className,
  variant = "outline",
  size = "default",
  ...props
}: React.ComponentProps<typeof AlertDialogPrimitive.Cancel> &
  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
  return (
    <Button variant={variant} size={size} asChild>
      <AlertDialogPrimitive.Cancel
        data-slot="alert-dialog-cancel"
        className={cn(className)}
        {...props}
      />
    </Button>
  )
}

export {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogMedia,
  AlertDialogOverlay,
  AlertDialogPortal,
  AlertDialogTitle,
  AlertDialogTrigger,
}

Update the import paths to match your project setup.

Usage

import {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
  AlertDialogTrigger,
} from "@/components/ui/alert-dialog"

<AlertDialog>
  <AlertDialogTrigger render={<Button variant="outline" />}>
    Show Dialog
  </AlertDialogTrigger>
  <AlertDialogContent>
    <AlertDialogHeader>
      <AlertDialogTitle>Are you absolutely sure?</AlertDialogTitle>
      <AlertDialogDescription>
        This action cannot be undone. This will permanently delete your account
        from our servers.
      </AlertDialogDescription>
    </AlertDialogHeader>
    <AlertDialogFooter>
      <AlertDialogCancel>Cancel</AlertDialogCancel>
      <AlertDialogAction>Continue</AlertDialogAction>
    </AlertDialogFooter>
  </AlertDialogContent>
</AlertDialog>

Composition

Use the following composition to build an AlertDialog:

AlertDialog
├── AlertDialogTrigger
└── AlertDialogContent
    ├── AlertDialogHeader
    │   ├── AlertDialogMedia
    │   ├── AlertDialogTitle
    │   └── AlertDialogDescription
    └── AlertDialogFooter
        ├── AlertDialogCancel
        └── AlertDialogAction

Examples

Basic

A basic alert dialog with a title, description, and cancel and continue buttons.

import {
  AlertDialog,
  AlertDialogAction,

Small

Use the size="sm" prop to make the alert dialog smaller.

import {
  AlertDialog,
  AlertDialogAction,

Media

Use the AlertDialogMedia component to add a media element such as an icon or image to the alert dialog.

import { CircleFadingPlusIcon } from "lucide-react"

import {

Small with Media

Use the size="sm" prop to make the alert dialog smaller and the AlertDialogMedia component to add a media element such as an icon or image to the alert dialog.

import { BluetoothIcon } from "lucide-react"

import {

Destructive

Use the AlertDialogAction component to add a destructive action button to the alert dialog.

import { Trash2Icon } from "lucide-react"

import {

RTL

To enable RTL support in Neobrutalism.com, see the RTL configuration guide.

"use client"

import { BluetoothIcon } from "lucide-react"

Accessibility

The alert dialog follows the WAI-ARIA Alert Dialog pattern: the popup renders role="alertdialog" wired to the title and description via aria-labelledby and aria-describedby, and focus is trapped inside while open.

Keyboard interactions:

Key	Action
`Space` / `Enter`	Open the dialog from the focused trigger
`Tab` / `Shift + Tab`	Cycle focus through the dialog's focusable elements
`Esc`	Close the dialog and return focus to the trigger

API Reference

size

Use the size prop on the AlertDialogContent component to control the size of the alert dialog. It accepts the following values:

Prop	Type	Default
`size`	`"default" \| "sm"`	`"default"`

For more information about the other components and their props, see the Base UI documentation.