Core Features

Review CometChat Angular UI Kit core features for messaging, media sharing, receipts, typing indicators, presence, reactions, threads, and search.

AI Integration Quick Reference

Field	Value
Package	@cometchat/chat-uikit-angular
Required setup	CometChatUIKit.init(UIKitSettings) then CometChatUIKit.login("UID") — must complete before rendering any component
Core features	Instant Messaging, Media Sharing, Read Receipts, Typing Indicator, User Presence, Reactions, Mentions, Rich Text Formatting, Quoted Reply, Pin & Save Messages, Search, Threaded Conversations, Thread Subscription, Moderation, Report Message, Group Chat
Key components	CometChatConversations → Conversations, CometChatMessageList → Message List, CometChatMessageComposer → Message Composer, CometChatMessageHeader → Message Header, CometChatUsers → Users, CometChatGroups → Groups, CometChatGroupMembers → Group Members
CSS class prefix	.cometchat-
Theming	Override CSS variables on .cometchat class. See Theming

The Angular UIKit components work together to deliver a complete chat experience. The sections below map each core feature to the components that implement it, so you can quickly find the right building block for any capability.

​

Instant Messaging

Real-time text messaging is at the heart of CometChat. Users can send and receive instant messages, enabling quick and efficient communication in both one-on-one and group conversations.

Component	Functionality
cometchat-message-composer	Provides the input area where users write and send text messages.
cometchat-message-list	Renders the chronological list of sent and received messages using text bubbles.

​

Media Sharing

CometChat supports sharing images, videos, audio files, and documents within conversations.

You can also attach multiple files to a single message — images, videos, audio files, and documents can be staged together in the composer and sent as one batch. See Multiple Attachments.

Component	Functionality
cometchat-message-composer	Includes an ActionSheet that presents options for attaching and sharing media files.
cometchat-message-list	Renders media message bubbles including Image, File, Audio, and Video bubbles.

​

Read Receipts

Read Receipts provide visibility into message status, letting users know when a message has been delivered and read. This brings clarity to communication and sets expectations about engagement.

Component	Functionality
cometchat-conversations	Displays the delivery and read status of the last message in each conversation list item.
cometchat-message-list	Shows read receipt indicators on every message bubble, providing real-time status updates.
cometchat-message-information	Gives the sender detailed insights into whether their message has been delivered and read.

​

Typing Indicator

The Typing Indicator shows when a user is composing a response in real time, making conversations feel more natural and interactive.

Component	Functionality
cometchat-conversations	Shows real-time typing status indicators in conversation list items for both one-on-one and group chats.
cometchat-message-header	Dynamically updates to display a “typing…” status when a user or group member is composing a message.

​

User Presence

User Presence lets users see whether their contacts are online or offline, helping them choose the best time to start a conversation.

Component	Functionality
cometchat-conversations	Displays user presence information alongside each conversation list item.
cometchat-message-header	Shows the online/offline status of the user or group in the message header toolbar.
cometchat-users	Renders the list of available users with their current presence status.
cometchat-group-members	Renders group member lists with presence information for each member.

​

Reactions

Reactions let users express emotions or respond to messages without typing a full reply, adding expressiveness and boosting engagement.

Component	Functionality
cometchat-message-list	Renders reaction indicators on message bubbles and provides the reaction picker action.
cometchat-reactions	Displays the reaction bar beneath a message bubble showing all reactions and their counts.
cometchat-reaction-list	Shows the full list of users who reacted to a message, grouped by reaction type.
cometchat-reaction-info	Displays a tooltip or popover with details about a specific reaction on hover.

​

Mentions

Mentions allow users to directly address specific individuals in a conversation using @username. The feature also supports @all to notify every member in a group chat simultaneously.

Component	Functionality
cometchat-conversations	Shows mention indicators in conversation list items so users can see where they were mentioned.
cometchat-message-composer	Provides the mention picker that appears as users type @, allowing them to select a user to mention.
cometchat-message-list	Renders mention highlights within message text, making mentioned names visually distinct.

​

Threaded Conversations

Threaded Conversations enable users to respond directly to a specific message, keeping discussions organized and maintaining context — especially useful in group chats.

Component	Functionality
cometchat-thread-header	Displays the parent message along with the reply count at the top of a thread view.
cometchat-message-list	Renders thread replies when parentMessageId is set.
cometchat-message-composer	Sends replies within a thread when parentMessageId is set.

​

Thread Subscription

Thread Subscription lets a user follow one specific thread so they are notified about its replies, and unfollow when they no longer want them. It is per-user and per-thread, and is available from v5.2.0 and off by default — enable it with enableThreadSubscription in COMETCHAT_GLOBAL_CONFIG (see Enabling the Feature).

Component	Functionality
cometchat-thread-header	Shows an icon-only follow/unfollow control in the thread’s top bar.
cometchat-message-list	Adds a follow/unfollow option to the message action menu, right after “Reply in thread”.

See the Thread Subscription guide.

​

Pin and Save Messages

Pinning highlights a message for everyone in a conversation; saving bookmarks one privately for the acting user, across every conversation. Each is gated by an app setting provisioned by CometChat.

Component	Functionality
cometchat-message-list	Offers Pin, Unpin, Save, and Unsave under an “Organise” flyout in the message action menu.
cometchat-message-bubble	Marks pinned and saved messages in the bubble’s status-info footer.
cometchat-pinned-messages	Lists a conversation’s pinned messages, with attribution and inline unpin.
cometchat-saved-messages	Lists the logged-in user’s saved messages across every conversation.
cometchat-message-header	Adds a “Pinned messages” entry to its overflow menu via showPinnedMessagesOption.

Each feature is switched on per app, and each carries its own cap:

App setting	Controls
features.ux.messages.pinned.enabled	Whether the pin surfaces render at all
features.ux.messages.pinned.limit	Pinned messages per conversation
features.ux.messages.saved.enabled	Whether the save surfaces render at all
features.ux.messages.saved.limit	Saved messages per user

The UI Kit reads these settings through the Chat SDK, so no wiring is needed to show, hide, or enforce them. When a user reaches a cap, the kit shows a toast that names the exact limit — no extra handling required. For a full walkthrough, see the Pin and Save guide.

​

Pin Conversations

Keep the chats that matter at the top. Users pin a conversation from the row’s context menu; pinned conversations show a pin indicator and sort above the rest of the list. Pins are personal to each user.

Component	Functionality
cometchat-conversations	Provides the Pin / Unpin conversation option, the row indicator, and pinned-first ordering.

Conversation pinning is switched on per app, and carries its own cap:

App setting	Controls
features.ux.conversations.pinned.enabled	Whether the conversation pin option renders
features.ux.conversations.pinned.limit	Pinned conversations per user

A conversation can also be system-pinned app-wide by your app. System pins always sort above user pins and cannot be unpinned from the UI. See cometchat-conversations → System Pins.

​

Quoted Replies

Quoted Replies enable users to quickly reply to specific messages by selecting the “Reply” option from a message’s action menu. This enhances context, keeps conversations organized, and improves overall chat experience in both one-on-one and group chats.

Component	Functionality
cometchat-message-list	Supports replying to messages via the “Reply” option. Users can select “Reply” on a message to open the composer with the quoted reply pre-filled, maintaining context.
cometchat-message-composer	Shows the quoted reply above the input field, providing context for the response.

​

Rich Text Formatting

Rich Text Formatting allows users to style their messages with bold, italic, underline, strikethrough, code, links, lists, and blockquotes. This brings richer expression to conversations and helps users emphasize key points, making communication clearer and more engaging.

Component	Functionality
cometchat-message-composer	Provides a built-in rich text editor with formatting toolbar, floating selection toolbar, and keyboard shortcuts for bold, italic, underline, strikethrough, code, links, lists, and blockquotes.
cometchat-message-list	Renders formatted messages with the appropriate styling applied, displaying bold, italic, underline, strikethrough, code, links, lists, and blockquote formatting as intended by the sender.

See the Rich Text Formatting Guide for detailed usage instructions.

​

Group Chat

CometChat facilitates group conversations, allowing multiple participants to communicate simultaneously — ideal for team collaborations, group discussions, and social communities.

Component	Functionality
cometchat-groups	Renders the list of available groups with search, join, and create capabilities.
cometchat-group-members	Displays the members of a group with roles, presence status, and management actions.

​

Moderation

CometChat’s Message Moderation feature helps maintain a safe and respectful chat environment by automatically filtering and managing inappropriate content. Messages can be automatically blocked or flagged based on predefined rules, ensuring harmful content is handled before it reaches users.

Learn more about setting up moderation rules and managing content in the Moderation documentation.

Component	Functionality
cometchat-message-list	Automatically handles moderated messages, displaying blocked content based on moderation settings.

​

Report Message

The Report Message feature allows users to report inappropriate or harmful messages within the chat. Users can choose from predefined reasons and provide additional remarks for detailed context. This feature helps maintain a safe and respectful chat environment.

Learn more about how flagged messages are handled, reviewed, and moderated in the Flagged Messages documentation.

Component	Functionality
cometchat-message-list	Provides the “Report Message” option in the message actions menu, allowing users to initiate the reporting process for inappropriate messages.

​

Conversation and Advanced Search

Conversation and Advanced Search enables users to quickly find conversations, messages, and media across chats in real time. It supports filters, scopes, and custom actions, allowing users to locate content efficiently while keeping the chat experience smooth and intuitive.

Component	Functionality
cometchat-search	Allows users to search across conversations and messages in real time. Users can click on a result to open the conversation or jump directly to a specific message.
cometchat-message-header	Shows the search button in the chat header, allowing users to search within a conversation.
cometchat-message-list	Shows the selected message when clicked from search results and highlights it in the message list.
cometchat-conversations	Displays the search input for filtering conversations.

See the Search Messages Guide for detailed implementation instructions.

---

​

Next Steps

Components Overview

Browse all available Angular UIKit components

Theme

Customize the look and feel of your chat UI

Call Features

Add audio and video calling

AI Smart Chat Features

Explore AI-powered chat capabilities