Message

Deploying to prod real quick.

It's 4:55 PM. On a Friday.

It's a one-line change.

Delivered

It's always a one-line change 😭.

Alright, let me take a look.

👍

Oliver is typing...

import {
	Avatar,
	AvatarFallback,
	AvatarImage,
} from "@/components/ui/avatar";
import {
	Bubble,
	BubbleContent,
	BubbleGroup,
	BubbleReactions,
} from "@/components/ui/bubble";
import { Marker, MarkerContent } from "@/components/ui/marker";
import {
	Message,
	MessageAvatar,
	MessageContent,
	MessageFooter,
} from "@/components/ui/message";

export function MessageDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-6 py-12">
			<Message align="end">
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/10.png" alt="@me" />
						<AvatarFallback>ME</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<Bubble>
						<BubbleContent>Deploying to prod real quick.</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message>
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/02.png" alt="@rabbit" />
						<AvatarFallback>R</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<Bubble variant="muted">
						<BubbleContent>It&apos;s 4:55 PM. On a Friday.</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message align="end">
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/10.png" alt="@me" />
						<AvatarFallback>ME</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<Bubble>
						<BubbleContent>It&apos;s a one-line change.</BubbleContent>
					</Bubble>
					<MessageFooter>Delivered</MessageFooter>
				</MessageContent>
			</Message>
			<Message>
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/02.png" alt="@rabbit" />
						<AvatarFallback>R</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<BubbleGroup>
						<Bubble variant="muted">
							<BubbleContent>
								It&apos;s always a one-line change 😭.
							</BubbleContent>
						</Bubble>
						<Bubble variant="muted">
							<BubbleContent>Alright, let me take a look.</BubbleContent>
							<BubbleReactions aria-label="Reactions: thumbs up">
								<span>👍</span>
							</BubbleReactions>
						</Bubble>
					</BubbleGroup>
				</MessageContent>
			</Message>
			<Marker role="status">
				<MarkerContent className="shimmer">
					<span className="font-medium">Oliver</span> is typing...
				</MarkerContent>
			</Marker>
		</div>
	);
}

The Message component lays out a single message in a conversation. It handles the avatar, alignment, header, and footer around the message surface.

For AI apps, you can render reasoning steps, tool calls and assistant messages using the Message component.

Installation

pnpm dlx shadcn@latest add https://herocn.dev/r/message.json

Usage

import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar"
import { Bubble, BubbleContent } from "@/components/ui/bubble"
import { Message, MessageAvatar, MessageContent } from "@/components/ui/message"

<Message>
  <MessageAvatar>
    <Avatar>
      <AvatarImage src="https://github.com/shadcn.png" alt="@shadcn" />
      <AvatarFallback>CN</AvatarFallback>
    </Avatar>
  </MessageAvatar>
  <MessageContent>
    <Bubble>
      <BubbleContent>How can I help you today?</BubbleContent>
    </Bubble>
  </MessageContent>
</Message>

Note: Message owns the row layout—avatar, alignment, header, and footer. Render the visible message surface inside it with Bubble. For the scroll container around a conversation, use MessageScroller.

Composition

Use the following composition to build a message:

Message
├── MessageAvatar
└── MessageContent
    ├── MessageHeader
    ├── Bubble
    └── MessageFooter

Use MessageGroup to stack consecutive messages from the same sender:

MessageGroup
├── Message
└── Message

Features

Start and end alignment for sender and receiver rows via the align prop
Avatar slot that anchors to the bottom of the message and stays clear of the footer
Header and footer slots for sender names, status, and message actions
Footer follows the message side; actions stay aligned on align="end" rows
Group wrapper for stacking consecutive messages from the same sender
Customizable styling through the className prop on every part

Avatar

Use MessageAvatar to render an avatar next to the message. Set align="end" on the message to align the avatar to the end of the message.

The build failed during dependency installation.

Can you share the exact error?

Here's the error from the logs

Something went wrong with the build. The libraries are not installed correctly. Try running the build again.

import {
	Avatar,
	AvatarFallback,
	AvatarImage,
} from "@/components/ui/avatar";
import {
	Bubble,
	BubbleContent,
	BubbleGroup,
} from "@/components/ui/bubble";
import {
	Message,
	MessageAvatar,
	MessageContent,
} from "@/components/ui/message";

export function MessageAvatarDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-6 py-12">
			<Message>
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/02.png" alt="@avatar" />
						<AvatarFallback>R</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<Bubble variant="muted">
						<BubbleContent>
							The build failed during dependency installation.
						</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message align="end">
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/10.png" alt="@avatar" />
						<AvatarFallback>R</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<Bubble>
						<BubbleContent>Can you share the exact error?</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message>
				<MessageAvatar>
					<Avatar>
						<AvatarImage src="/avatars/02.png" alt="@avatar" />
						<AvatarFallback>R</AvatarFallback>
					</Avatar>
				</MessageAvatar>
				<MessageContent>
					<BubbleGroup>
						<Bubble variant="muted">
							<BubbleContent>Here&apos;s the error from the logs</BubbleContent>
						</Bubble>
						<Bubble variant="muted">
							<BubbleContent>
								Something went wrong with the build. The libraries are not
								installed correctly. Try running the build again.
							</BubbleContent>
						</Bubble>
					</BubbleGroup>
				</MessageContent>
			</Message>
		</div>
	);
}

align	Description
`start`	Align the message to the start of the conversation.
`end`	Align the message to the end of the conversation.

Group

Use MessageGroup to stack consecutive messages from the same sender. Render an empty MessageAvatar on the earlier messages to keep them aligned with the avatar on the last one.

I checked the registry addresses.

The component and example JSON now live under the UI registry.

import {
	Avatar,
	AvatarFallback,
	AvatarImage,
} from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import {
	Message,
	MessageAvatar,
	MessageContent,
	MessageGroup,
} from "@/components/ui/message";

export function MessageGroupDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-6 py-12">
			<MessageGroup>
				<Message>
					<MessageAvatar />
					<MessageContent>
						<Bubble variant="muted">
							<BubbleContent>I checked the registry addresses.</BubbleContent>
						</Bubble>
					</MessageContent>
				</Message>
				<Message>
					<MessageAvatar>
						<Avatar>
							<AvatarImage src="/avatars/02.png" alt="@avatar" />
							<AvatarFallback>CN</AvatarFallback>
						</Avatar>
					</MessageAvatar>
					<MessageContent>
						<Bubble variant="muted">
							<BubbleContent>
								The component and example JSON now live under the UI registry.
							</BubbleContent>
						</Bubble>
					</MessageContent>
				</Message>
			</MessageGroup>
		</div>
	);
}

Header and Footer

Use MessageHeader for a sender name and MessageFooter for metadata such as a delivery or read status.

Olivia

I already checked the logs.

Send the report to the team. Ping @shadcn if you need help.

Read Yesterday

import { Bubble, BubbleContent } from "@/components/ui/bubble";
import {
	Message,
	MessageContent,
	MessageFooter,
	MessageHeader,
} from "@/components/ui/message";

export function MessageHeaderFooterDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-8 py-12">
			<Message>
				<MessageContent>
					<MessageHeader>Olivia</MessageHeader>
					<Bubble variant="muted">
						<BubbleContent>I already checked the logs.</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message align="end">
				<MessageContent>
					<Bubble>
						<BubbleContent>
							Send the report to the team. Ping @shadcn if you need help.
						</BubbleContent>
					</Bubble>
					<MessageFooter>
						<div>
							Read <span className="font-normal">Yesterday</span>
						</div>
					</MessageFooter>
				</MessageContent>
			</Message>
		</div>
	);
}

Actions

Place message-level actions in MessageFooter, such as copy, retry, or feedback buttons.

The install failure is coming from the workspace package.

Okay drop me a link. Taking a look...

Failed to send

import {
	CopyIcon,
	RefreshCcwIcon,
	ThumbsDownIcon,
	ThumbsUpIcon,
} from "lucide-react";

import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import {
	Message,
	MessageContent,
	MessageFooter,
} from "@/components/ui/message";

export function MessageActionsDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-8 py-12">
			<Message>
				<MessageContent>
					<Bubble variant="muted">
						<BubbleContent>
							The install failure is coming from the workspace package.
						</BubbleContent>
					</Bubble>
					<MessageFooter>
						<Button
							variant="ghost"
							size="icon-sm"
							aria-label="Copy"
							title="Copy"
						>
							<CopyIcon />
						</Button>
						<Button
							variant="ghost"
							size="icon-sm"
							aria-label="Like"
							title="Like"
						>
							<ThumbsUpIcon />
						</Button>
						<Button
							variant="ghost"
							size="icon-sm"
							aria-label="Dislike"
							title="Dislike"
						>
							<ThumbsDownIcon />
						</Button>
					</MessageFooter>
				</MessageContent>
			</Message>
			<Message align="end">
				<MessageContent>
					<Bubble>
						<BubbleContent>Okay drop me a link. Taking a look...</BubbleContent>
					</Bubble>
					<MessageFooter className="gap-2">
						<span className="font-normal text-destructive">Failed to send</span>
						<Button
							variant="ghost"
							size="icon-xs"
							title="Retry"
							aria-label="Retry"
						>
							<RefreshCcwIcon />
						</Button>
					</MessageFooter>
				</MessageContent>
			</Message>
		</div>
	);
}

Attachment

Here's the image. Can you add it to the PDF? Use it for the cover page.

Done. Here's the PDF with the image added as the cover page.

sales-dashboard.pdfPDF · 2.4 MB

Thanks. Looks good.

import { DownloadIcon, FileTextIcon } from "lucide-react";

import {
	Attachment,
	AttachmentAction,
	AttachmentActions,
	AttachmentContent,
	AttachmentDescription,
	AttachmentMedia,
	AttachmentTitle,
} from "@/components/ui/attachment";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Message, MessageContent } from "@/components/ui/message";

export function MessageAttachmentDemo() {
	return (
		<div className="flex w-full max-w-sm flex-col gap-8 py-12">
			<Message align="end">
				<MessageContent>
					<Attachment orientation="vertical">
						<AttachmentMedia variant="image">
							<img
								src="https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80"
								alt="Workspace"
							/>
						</AttachmentMedia>
					</Attachment>
					<Bubble>
						<BubbleContent>
							Here&apos;s the image. Can you add it to the PDF? Use it for the
							cover page.
						</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
			<Message>
				<MessageContent>
					<Bubble variant="muted">
						<BubbleContent>
							Done. Here&apos;s the PDF with the image added as the cover page.
						</BubbleContent>
					</Bubble>
					<Attachment>
						<AttachmentMedia>
							<FileTextIcon />
						</AttachmentMedia>
						<AttachmentContent>
							<AttachmentTitle>sales-dashboard.pdf</AttachmentTitle>
							<AttachmentDescription>PDF · 2.4 MB</AttachmentDescription>
						</AttachmentContent>
						<AttachmentActions>
							<AttachmentAction
								type="button"
								title="Download"
								aria-label="Download"
								variant="secondary"
							>
								<DownloadIcon />
							</AttachmentAction>
						</AttachmentActions>
					</Attachment>
				</MessageContent>
			</Message>
			<Message align="end">
				<MessageContent>
					<Bubble>
						<BubbleContent>Thanks. Looks good.</BubbleContent>
					</Bubble>
				</MessageContent>
			</Message>
		</div>
	);
}

Accessibility

Message is a presentational layout wrapper. Accessibility comes from the content you place inside it.

Label icon-only actions

Action buttons in MessageFooter are usually icon-only, so give each one an aria-label.

<MessageFooter>
  <Button variant="ghost" size="icon" aria-label="Copy">
    <CopyIcon />
  </Button>
</MessageFooter>

Status updates

For in-progress messages, use a Marker with role="status" so assistive tech announces the update as it appears.

<Message>
  <Marker role="status">
    <MarkerIcon>
      <Spinner />
    </MarkerIcon>
    <MarkerContent>Checking the logs...</MarkerContent>
  </Marker>
</Message>

API Reference

Message

The message row wrapper.

Prop	Type	Default
align	`"start" \| "end"`	`"start"`
className	`string`	—

MessageGroup

Groups consecutive messages from the same sender.

Prop	Type	Default
className	`string`	—

MessageAvatar

The avatar slot, aligned to the bottom of the message. When the message has a MessageFooter, the avatar shifts up to stay aligned with the message surface instead of the footer.

Prop	Type	Default
className	`string`	—

MessageContent

Wraps the header, message surface, and footer.

Prop	Type	Default
className	`string`	—

MessageHeader

Displays content above the message, such as a sender name. Stays aligned to the start regardless of align.

Prop	Type	Default
className	`string`	—

MessageFooter

Displays content below the message, such as status or actions. Aligns to the message side.

Prop	Type	Default
className	`string`	—