Extensions

Enhance your chat with built-in extensions including stickers, polls, collaborative tools, message translation, and link previews

AI Agent Component Spec

Field	Value
Package	cometchat_chat_uikit
Required setup	CometChatUIKit.init(uiKitSettings: UIKitSettings) then CometChatUIKit.login(uid) + Extensions enabled in CometChat Dashboard
Extension categories	User Experience, User Engagement, Collaboration, Security
Key components	CometChatMessageComposer → Message Composer (Stickers, Polls, Whiteboard, Document), CometChatMessageList → Message List (Translation, Link Preview, Thumbnails)
Activation	Enable each extension from the CometChat Dashboard — UI Kit auto-integrates them, no additional code required

CometChat’s UI Kit comes with built-in support for a wide variety of extensions that provide additional functionality. These extensions enhance the chatting experience, making it more interactive, secure, and efficient.

Activating any of the extensions in CometChat is a simple process done through your application’s dashboard. Refer to our guide for detailed information on Extensions.

Once you have successfully enabled the desired extension in your dashboard, it will be reflected in your CometChat application upon initialization and successful login. The extension features will only be available if they are supported by CometChat UI Kit.

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Built-in Extensions

The grouping below mirrors the CometChat Dashboard.

User Experience

Link Preview

The Link Preview extension provides a summary of the URL shared in the chat. It includes the title, a description, and a thumbnail image from the web page. For a comprehensive understanding and guide on implementing and using the Link Preview Extension, refer to our specific guide on the Link Preview Extension.

Once you have successfully activated the Link Preview Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Message Bubble of MessageList Widget widget of UI Kits.

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Thumbnail Generation

The Thumbnail Generation extension automatically creates a smaller preview image whenever a larger image is shared, helping to reduce the upload/download time and bandwidth usage. For a comprehensive understanding and guide on implementing and using the Thumbnail Generation Extension, refer to our specific guide on the Thumbnail Generation Extension.

Once you have successfully activated the Thumbnail Generation Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Message Bubble of MessageList Widget widget of UI Kits.

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Bitly

Shortens long URLs in text messages using Bitly. See Bitly Extension.

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TinyURL

URL shortening using TinyURL. See TinyURL Extension.

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Message Shortcuts

Sends predefined messages using short codes (e.g., !hb expands to Happy birthday!). See Message Shortcuts Extension.

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Pin Message

Pins important messages in a conversation for easy access. See Pin Message Extension.

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Save Message

Bookmarks messages for later reference. Saved messages are private to the user. See Save Message Extension.

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Rich Media Preview

Generates rich preview panels for URLs using iFramely. See Rich Media Preview Extension.

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Voice Transcription

Converts audio messages to text. See Voice Transcription Extension.

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User Engagement

Stickers

The Stickers extension allows users to express their emotions more creatively. It adds a much-needed fun element to the chat by allowing users to send various pre-designed stickers. For a comprehensive understanding and guide on implementing and using the Sticker Extension, refer to our specific guide on the Sticker Extension.

Once you have successfully activated the Sticker Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Message Composer widget of UI Kits.

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Polls

The Polls extension enhances group discussions by allowing users to create polls. Users can ask questions with a predefined list of answers, enabling a quick, organized way to gather group opinions. For a comprehensive understanding and guide on implementing and using the Polls Extension, refer to our specific guide on the Polls Extension.

Once you have successfully activated the Polls Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Action Sheet of the Message Composer widget of UI Kits.

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Message Translation

The Message Translation extension in CometChat is designed to translate any message into your local locale. It eliminates language barriers, making the chat more inclusive. For a comprehensive understanding and guide on implementing and using the Message Translation Extension, refer to our specific guide on the Message Translation Extension.

Once you have successfully activated the Message Translation Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Action Sheet of MessageList Widget widget of UI Kits.

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Giphy

Search and share GIFs from Giphy. See Giphy Extension.

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Tenor

Search and share GIFs from Tenor. See Tenor Extension.

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Stipop

Integrates Stipop’s sticker library. See Stipop Extension.

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Reminders

Sets reminders for messages or creates personal reminders. A bot sends a notification when due. See Reminders Extension.

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Collaboration

Collaborative Whiteboard

The Collaborative Whiteboard extension facilitates real-time collaboration. Users can draw, brainstorm, and share ideas on a shared digital whiteboard. For a comprehensive understanding and guide on implementing and using the Collaborative Whiteboard Extension, refer to our specific guide on the Collaborative Whiteboard Extension.

Once you have successfully activated the Collaborative Whiteboard Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Action Sheet of the Message Composer widget of UI Kits.

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Collaborative Document

With the Collaborative Document extension, users can work together on a shared document. This feature is essential for remote teams where document collaboration is a recurring requirement. For a comprehensive understanding and guide on implementing and using the Collaborative Document Extension, refer to our specific guide on the Collaborative Document Extension.

Once you have successfully activated the Collaborative Document Extension from your CometChat Dashboard, the feature will automatically be incorporated into the Action Sheet of the Message Composer widget of UI Kits.

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Security

Disappearing Messages

Messages auto-delete after a specified interval. Works for 1:1 and group messages. See Disappearing Messages Extension.

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Customer Support

Chatwoot

Routes user messages to Chatwoot for customer support. See Chatwoot Extension.

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Intercom

Integrates Intercom for in-app customer support. See Intercom Extension.

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Smart Chat Features

For AI-powered features like Conversation Starter, Smart Replies, and Conversation Summary, see AI Features.

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Enabling Extensions

To enable extensions in your Flutter app, configure them during initialization:

Dart

UIKitSettings uiKitSettings = (UIKitSettingsBuilder()
  ..appId = "YOUR_APP_ID"
  ..region = "YOUR_REGION"
  ..authKey = "YOUR_AUTH_KEY"
  ..subscriptionType = CometChatSubscriptionType.allUsers
  ..extensions = CometChatUIKitChatExtensions.getDefaultExtensions()  // Enable all default extensions
).build();

await CometChatUIKit.init(uiKitSettings: uiKitSettings);

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Next Steps

Message Composer

Learn how extensions integrate with the message composer

Message List

See how extensions enhance message display

Extensions Overview

Explore all available extensions in detail

Dashboard Setup

Enable extensions from your CometChat Dashboard

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