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Quick Reference for AI Agents & Developers
// Enable extensions during initialization
UIKitSettings uiKitSettings = (UIKitSettingsBuilder()
  ..appId = "YOUR_APP_ID"
  ..region = "YOUR_REGION"
  ..extensions = CometChatUIKitChatExtensions.getDefaultExtensions()
).build();

await CometChatUIKit.init(uiKitSettings: uiKitSettings);
Built-in Extensions:
  • Stickers → Express emotions with pre-designed stickers
  • Polls → Create polls for group discussions
  • Message Translation → Translate messages to local locale
  • Link Preview → Show URL summaries with thumbnails
  • Thumbnail Generation → Auto-generate image previews
  • Giphy/Tenor → Share animated GIFs
  • Voice Transcription → Transcribe audio messages
  • Rich Media Preview → Preview links from popular sites
Enable from: CometChat Dashboard → Extensions
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.
Available via: UI Kits | SDK | Dashboard
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. Please note, that the extension features will only be available if they are supported by CometChat UI Kit.

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All Extensions

The following table provides a quick reference for all available extensions:
ExtensionDescriptionDashboard Required
StickersExpress emotions with pre-designed stickersYes
PollsCreate polls for group discussionsYes
Message TranslationTranslate messages to different languagesYes
Link PreviewShow URL summaries with thumbnailsYes
Thumbnail GenerationAuto-generate image previewsYes
BitlyCreate branded short linksYes
TinyURLConvert long URLs to short linksYes
Rich Media PreviewPreview links from YouTube, Twitter, etc.Yes
GiphySearch and share animated GIFsYes
TenorShare GIFs from Tenor libraryYes
StipopAccess premium sticker collectionsYes
Voice TranscriptionTranscribe audio messages to textYes
Message ShortcutsSend pre-defined messages using shortcutsYes
Pin MessagePin important messages in conversationsYes
Save MessageSave messages for quick access laterYes
RemindersCreate reminders for messagesYes

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Built-in Extensions

Here’s a guide on how you can enable and integrate these extensions:

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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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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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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.
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

Bitly helps you create and share branded links with custom domains at scale. When users share URLs in chat, Bitly can automatically shorten them into clean, trackable links. For detailed implementation, see Bitly Extension.

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TinyURL

TinyURL helps you convert long website links into short, manageable URLs that are reliable, secure, and never expire. This extension automatically shortens URLs shared in conversations.

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Rich Media Preview

Generate rich media previews for all popular sites including YouTube, Twitter, and more. When users share links, the extension automatically fetches and displays rich previews with thumbnails, titles, and descriptions.

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Giphy

Allow users to search and share animated GIFs directly in conversations. The Giphy extension adds a GIF picker to the message composer, making it easy to find and send the perfect GIF. For detailed implementation, see Giphy Extension.

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Tenor

Bring personality to your conversations with Tenor’s extensive GIF library. Similar to Giphy, Tenor provides access to millions of animated GIFs that users can search and share.

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Stipop

Create meaningful experiences in your app with stickers that users love. Stipop provides access to premium sticker collections from artists around the world.

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Voice Transcription

Transcribe audio messages using powerful neural network models. This extension automatically converts voice messages to text, improving accessibility and making audio content searchable.

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Message Shortcuts

Send pre-defined messages using shortcuts (e.g., \hello). Users can configure custom shortcuts that expand into full messages, speeding up common responses. For detailed implementation, see Message Shortcuts.

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Pin Message

Pin important messages for all users in a conversation to easily reference later. Pinned messages appear at the top of the chat, ensuring critical information is always visible.

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Save Message

Enable users to save messages from one-on-one and group conversations for quick access later. Saved messages can be accessed from a dedicated section, making it easy to find important information.

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Reminders

Create reminders for messages or anything else to stay on top of important conversations. Users can set reminders on specific messages to be notified at a later time.

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Enabling Extensions

To enable extensions in your Flutter app, configure them during initialization: 
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);
To disable all extensions, pass an empty array: 
UIKitSettings uiKitSettings = (UIKitSettingsBuilder()
  ..appId = "YOUR_APP_ID"
  ..region = "YOUR_REGION"
  ..extensions = []  // Disable all extensions
).build();

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Next Steps

Collaboration Tools

Enable shared documents, whiteboards, and disappearing messages

Third-Party Integrations

Connect with Chatwoot and Intercom

AI Features

Explore AI-powered chat capabilities

Extensions Overview

Explore all available extensions in detail