Trusted by over one billion end users

The #1 Chat Messaging + Activity Feed Infrastructure

Build scalable in-app chat or activity feeds in days. Product teams trust Stream to launch faster, iterate more often, and ship a better user experience. Try for Free →

Chat Messaging API

  • Build complete chat experiences
  • SDKs with matching UI kits
  • Enterprise scalability

Activity Feeds API

  • Build complete social feeds
  • SDKs with matching UI kits
  • Enterprise scalability

Launch Next Year This Week

Stream enables you to focus on what makes your app unique.

Accelerate Your Launch

Build Chat Messaging or Activity Feeds for your app in days, with performance and a user experience that takes years to build in-house.

Focus Your Value

Chat Messaging and Activity Feeds are solved problems. Leverage Stream and focus your team on what makes your app unique.

Grow Your App

Stream is trusted by thousands of companies and more than a billion end-users to reliably scale, regardless of demand.

Carefully Designed APIs
and Component SDKs

We obsess over API ease of use. This is why our customers typically integrate in days while competing solutions take months to integrate.

Stream simplifies processing billions of activities into a simple API for input and output, with performance that would take our team months, if not years to learn and optimize.

Unsplash CPO

Luke Chesser

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Chat Example Code

View Chat Docs →
import React from 'react';
import { Chat, Channel, ChannelHeader, Thread, Window } from 'stream-chat-react';
import { MessageList, MessageInput } from 'stream-chat-react';
import { StreamChat } from 'stream-chat';
import 'stream-chat-react/dist/css/index.css';

const App = () => (
  <Chat client={chatClient} theme={'messaging light'}>
    <Channel channel={channel}>
      <Window>
        <ChannelHeader />
        <MessageList />
        <MessageInput />
      </Window>
      <Thread />
    </Channel>
  </Chat>
);

export default App;

Feeds Example Code

View Feed Docs →
import React from 'react';
import { StreamApp, StatusUpdateForm, FlatFeed } from 'react-activity-feed';
import 'react-activity-feed/dist/index.css';

class App extends React.Component {
  render() {
    return(
      <StreamApp
        apiKey={apiKey}
        appId={appId}
        token={userId}>
        <StatusUpdateForm />
        <FlatFeed />
      </StreamApp>
    );
  }
}

export default App;

Cloud Components

Stream provides a level of performance and UX that takes years to build in-house.

UI Kits

Our UI Kits match our Cloud Components to give teams the chance to design and build the perfect experience.

“We are very, very happy with how fast it was to get a full-featured chat in place on our site through Stream. We have never seen that kind of turnaround time before. Stream saved us time and effort and helped us start making a lot of forward movement on our process.”

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Jared Rapp

Director of Engineering

Enterprise Ready

Rapidly deploy scalable feeds and chat messaging with an industry leading 99.999% uptime SLA guarantee. Learn more about Enterprise →

End Users

1+ Billion

API Stack
Avg API Response

~9ms

Compliance