Chat SDK

Chat SDKs to build in-app messaging

Add real-time chat to your app in minutes with SDKs for JavaScript, Flutter, React, and React Native. Easy to integrate, fully customizable — complete with group chat, media sharing, push notifications, and more.

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import React from 'react';
import * as TalkRn from '@talkjs/react-native';

function ChatComponent(props) {
  const me = {
    id: '123456789',
    name: 'Alice',
    email: 'alice@example.com',
    photoUrl: 'https://talkjs.com/images/avatar-1.jpg',
    welcomeMessage: 'Hey there! How are you? :-)',
  };

  const other = {
    id: '987654321',
    name: 'Sebastian',
    email: 'Sebastian@example.com',
    photoUrl: 'https://talkjs.com/images/avatar-5.jpg',
    welcomeMessage: 'Hey, how can I help? https://google.com',
  };

  const conversationBuilder = TalkRn.getConversationBuilder(
    TalkRn.oneOnOneId(me, other)
  );

  conversationBuilder.setParticipant(me);
  conversationBuilder.setParticipant(other);

  return (
    <TalkRn.Session appId="tPKdyezd" me={me}>
      <TalkRn.Chatbox conversationBuilder={conversationBuilder} />
    </TalkRn.Session>
  );
}

Hey, I'm trying to lift state up from a child component, but I'm getting undefined errors. Any ideas?

8m ago

Are you passing the state and the setState function correctly as props?

6m ago

I think so, yes.

5m ago

Maybe you're not binding the handler in the constructor. That might be the issue.

2m ago

typing...

just now

Write a reply...

Hey, I’m having trouble accessing my account. It says my password is incorrect.

5m ago

Hi there! No problem — let’s get that sorted. Have you tried resetting your password using the 'Forgot password?' link?

4m ago

Yes, but I haven’t received the reset email yet.

3m ago

Thanks for confirming. I’ve just sent a new reset link to your email. Please check your inbox and spam folder.

2m ago

Is there anything else I can help you with?

just now

Got it — checking my inbox now!

Chat SDKs overview

Build high-quality messaging experiences with chat SDKs designed for real-time performance, scalability, and fast integration — whether you’re targeting mobile, web, or cross-platform applications.

React Native chat SDK

Ship cross-platform chat on iOS and Android using the React Native SDK. Support for push notifications, media uploads, and more.

Flutter chat SDK

Deliver beautiful, consistent messaging experiences across Android, iOS, and web with the Flutter SDK.

JavaScript chat SDK

Add real-time chat to any web app with the JavaScript SDK. Customize messaging flows, enable group chats, and more with ease.

React chat SDK

Speed up development with ready-made components from the React SDK. Customizable and secure out of the box.

.message {
  white-space: normal;
  overflow: hidden;
  border-radius: 0.75rem;
  border-width: 1px;
  border-style: solid;
  word-wrap: break-word;
  position: relative;
  display: inline-block;
  max-width: calc(100% - 6rem - 0.25rem - 0.25rem);
  border-color: #F2F2F2;
  background-color: #F2F2F2;
  color: #171717;
}

.has-avatar-spacer .message {
  max-width: calc(100% - 3rem - 0.25rem - 0.25rem);
}

.by-me .message {
  border-color: #EC4899;
  background-color: #EC4899; 
  color: #fff;
  margin-right: 0.50rem;
}

Hey, have you heard about these micro communities people are joining?

8m ago

Yeah, I have! They seem like a great alternative to big social media platforms.

7m ago

Definitely. I joined one for local gardening enthusiasts. It's so much more engaging.

6m ago

That's cool. I've been looking to cut down my social media time. How do you like it?

2m ago

I love it. More meaningful interactions.

just now

I'll start looking into it!

Why developers choose TalkJS for in-app messaging

TalkJS helps you launch reliable, full-featured messaging faster.

Built for popular frameworks
Get started quickly with chat SDKs optimized for React, Flutter, React Native, or regular JavaScript.
Everything you need for a modern chat experience
Group chat, 1-on-1 messaging, typing indicators, read receipts, and real-time updates—ready out of the box.
Customize the entire chat experience
From UI design to real-time behavior, the chat SDKs let you build exactly what your users need.
Deploy your way: self-hosted or fully managed
Run our chat on your own infrastructure or let TalkJS host it for you. Maintain full control over your data with easy export and no vendor lock-in.
Infrastructure that grows with you
Ready for global scale, with encryption, GDPR compliance, and low-latency delivery.

Complete messaging feature set

Build an in-app messaging experience your users actually love. Everything you need to drive engagement and retention, powered by a fast, reliable messaging infrastructure.

Explore Travel

now

Flight update

Check in online for your Singapore flight tomorrow. Upgrade to priority boarding.

Push notifications

Notify users across platforms — even when apps are closed.

Foodies

Channel5 members

Group chat

Build secure chat rooms, team chats, and community spaces.

Can you please remind of the name of the coffee shop we visited yesterday?

2m ago

Read receipts & typing indicators

Keep users informed in real-time with modern messaging feedback.

https://youtu.be/SFKc9rDrKDM?si=n4WcD_kr52jOFqOP Video still

4m ago

Media attachments

Let users upload images, videos, and files easily. Works across mobile and web.

Hey @adam are you available for a call this afternoon after 2PM? If not, then tomorrow.

Mentions & replies

Add structure and clarity to conversations with Slack-like interactions.

Can I still change my order?

1m ago

AI agent

Absolutely! What would you like to change about your order?

just now

AI chatbot integration

Integrate virtual assistants or AI bots into conversations with ease.

Replies

Voice messages

Mentions

Emoji reactions

Link previews

Edit messages

Private 1-1 chat

Group chat

Large public group chat

AI chatbot integration

Notifications

Threads

Read receipts

Message search

Conversation search

Persistent message history

File sharing

Media attachments

Typing indicator

Message translation

Announcements

Admin messages

Moderation

Mute user in channel

Ban user

Block user

Flag messages

Profanity filter

Spam protection

Domain filter

Silent messages

Location sharing

Presence indicators

Unread message count

Custom message actions

Custom message types

Analytics

Data export

Third-party integrations

Voice and video call integration

Webhooks

Multi-tenancy support

User roles

Channel list

Chat SDKs to build in-app messaging

Chat SDKs overview

Why developers choose TalkJS for in-app messaging

Complete messaging feature set

Ready to get started?

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