> ## Documentation Index
> Fetch the complete documentation index at: https://www.cometchat.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Extensions

> Overview of Extensions in CometChat.

We believe that building a great chat product does not consist of just voice, video and text chat. It's much more than that. And Extensions are our answer to this.

Extensions pickup where our core leaves. They help extend the functionality of CometChat.

### User Experience

Extensions that help improve the user messaging experience. *Recommended for most apps.*

[Bitly](/fundamentals/bitly)\
[Link Preview](/fundamentals/link-preview)\
[Message shortcuts](/fundamentals/message-shortcuts)\
[Pin message](/fundamentals/pin-message)\
[Rich Media Preview](/fundamentals/rich-media-preview)\
[Save message](/fundamentals/save-message)\
[Thumbnail Generation](/fundamentals/thumbnail-generation)\
[TinyURL](/fundamentals/tinyurl)\
[Voice Transcription](/fundamentals/voice-transcription)\
[Avatars](/fundamentals/avatars)

### User Engagement

Extensions that help increase user engagement. *Recommended for advanced apps.*

[Giphy](/fundamentals/giphy)\
[Message Translation](/fundamentals/message-translation)\
[Polls](/fundamentals/polls)\
[Reminders](/fundamentals/reminders)\
[Stickers](/fundamentals/stickers)\
[Stipop](/fundamentals/stickers-stipop)\
[Tenor](/fundamentals/tenor)\
[Email replies](/fundamentals/email-replies)\
[Mentions](/fundamentals/mentions)\
[Reactions](/fundamentals/reactions)\
[Smart Reply](/fundamentals/smart-replies)\
[Live Streaming by api.video](/fundamentals/video-broadcasting)

### Collaboration

Extensions that help with collaboration. *Recommended for advanced apps.*

[Collaborative Whiteboard](/fundamentals/collaborative-whiteboard)\
[Collaborative Document](/fundamentals/collaborative-document)

### Security

*Extensions that help you to build adding extra security to your apps.* *Recommended for live streaming and event apps.*

[Disappearing messages](/fundamentals/disappearing-messages)\
[End to End Encryption](/fundamentals/end-to-end-encryption)

### Customer Support

Extensions that help you add support to your app. *Recommended for advanced apps.*

[Chatwoot](/fundamentals/chatwoot)\
[Intercom](/fundamentals/intercom)

### Notifications

Extensions that help alert users of new messages. *Recommended for all apps.*

[Push Notification](/notifications/web-push-notifications)\
[Email Notification](/notifications/email-notifications-extension-legacy)\
[SMS Notification](/notifications/sms-notifications-extension-legacy)

### Moderation

*Extensions that help you to build a safe messaging environment.* *Recommended for live streaming and event apps.*

[Legacy Moderation Extensions](/moderation/legacy-extensions)