PubNub ChatEngine™

An open and extensible chat SDK and APIs for building powerful 1:1 and group chat quickly

Build core chat features quickly, extend functionality with a rich plugin library and customize with programmable Functions-as-a-Service. Powered by the reliable, secure and scalable PubNub Network.

Get Started

// Listen for users coming online.
app.chat.on('$.online.*',function(data){
app.users[data.user.uuid] = data.user;
app.renderUsers ();
});
//Listen for messages.
app.chat.on('message',function(message){
app.renderMessage (message);
});

Start Building Your Chat App

ChatEngine is easy to use, and delivers best practices for chat design and development. In fact, build a chat app in < 30 lines of code, complete with chat rooms, presence, and message history.

ChatEngine Quickstart Guide
Full Documentation

ChatEngine Features and Plugins

ChatEngine is extensible, providing both core messaging features and powerful plugins and integrations to deliver everything you need to build fully-featured chat fast.

Private and Group Chat
Message History
Read Receipts
Typing Indicators
Emojis
Chat UI Components
User Online/Offline Status and Search
Unread Message Counts
Push Notiﬁcations

Scale

Capable of supporting > 1,000,000 users per chat room.
< 250 ms latency worldwide.
15 replicated points-of-presence for instant failover.

Secure

Authorization & access permissions for users and chat rooms.
TLS and AES256 encryption with HIPAA, SOC 2 Compliant, Privacy Shield certified.
Optional EU-only routing & storage for EU-based PII.

Programmable

Create and host chatbots.
Customize your chat with PubNub Functions - no need to host servers.
Create Webhooks and new API endpoints in minutes.

Content Moderation
Services to ﬁlter inappropriate text and image content.
Language Translation
Support for 11 different languages.
Sentiment Analysis
Leverage machine learning for tracking user emotion (great for Customer Support).
Alerts and Notiﬁcations
Trigger SMS, email, and push notification for offline users.