Chat API and SDKs

Build production-ready chat in minutes

Power private and group conversations for marketplaces

function Chatbox({product, user, seller}) {
  const id = "chat_" + product.id;
  const session = useTalkSession();

  useEffect(() => {
    const conversationRef = session.conversation(id);
    conversationRef.createIfNotExists({
      subject: product.title,
      photoUrl: product.pictures[0]
    });
    conversationRef
      .participant(seller.id)
      .set();
  }, [product, seller, id, session]);

  return <div style={{width: 400, height: 500}}>
    <Chatbox 
      appId="8hj9w09" 
      userId={user.id}
      conversationId={id} 
      onSendMessage={onSendMessage}
    />
  </div>;
}

Hey! Is the backpack still available?

3m ago

All the features you need for high-performance chat

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.

Can I still change my order?

1m ago

AI agent

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

just now

AI-ready out of the box

Easily integrate virtual assistants or AI bots into any real-time conversation.

Foodies

Channel5 members

Private, group & public chat

Power private 1-on-1 conversations, team group chats, and large-scale public communities, all with the same flexible API.

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

2m ago

Real-time presence feedback

Show who's online, who's typing, and who’s read what, just like on Slack, WhatsApp, or Messenger.

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

Mentions, reactions & link previews

Bring conversations to life with emoji reactions, @mentions, and automatic link previews.

Emma

I've been wanting to work on my writing. Is it worth the price, though? I had a look and it's really [content hidden] expensive!

Moderation & spam control

Automatically flag harmful messages, ban disruptive users, and filter profanity to protect your community with minimal code.

Searchable message history

Conversations are stored securely, searchable instantly, and always available, with full control over data export and retention.

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

.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: #171717;
  background-color: #171717; 
  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!

Ready-to-ship chat UI that’s fully customizable

Launch your chat product faster with pre-built chat UIs you can fully customize. Get pixel-perfect control to match your unique brand and user needs, while handling the complex parts of real-time messaging for you.

Build scalable in-app messaging for web and mobile; from 1-on-1 conversations to group chat and community channels. Every component adapts to your brand, from layouts and themes to behaviors and user flows. Our pre-built UIs integrate seamlessly with your stack, cut months off development, and help you deliver a polished, reliable chat experience that keeps users engaged.

Pre-built UIs Chat demos

Flexible chat SDKs
Developer-approved

Rapidly ship in-app messaging with feature-rich SDKs. Build the exact live chat experience your users want—developer-friendly, framework-agnostic, and built for performance.

Chat docs Chat tutorials

// Synchronize user data and set up
const currentUser = new Talk.User({
    id: 79302,                      // user id
    name: "Alice",                  // full name
    email: "alice@example.com"      // for offline email fallback
});
const talkSession = new Talk.Session({
    appId: "9352938974",            // your TalkJS account id
    me: currentUser                 // make George the active user
});

// All set! Let's turn a div into Alice's messaging center
const inbox = talkSession.createInbox();
inbox.mount(this.$refs.talkjs);
...

Get started with any framework

Case study

Enable seamless buyer-seller communication with real-time chat

Discover how TalkJS helped Itemku create a stable, cost-efficient messaging solution that increased buyer-seller communication, enabled file sharing, and supported smooth post-checkout interactions.

Read the full case study

Start building for free

Fast to ship, ready to scale.

Secure chat infrastructure, ready for global scale

Power real-time messaging at global scale with infrastructure built to deliver billions of messages—fast, secure, and zero downtime. Designed for security and reliability, your data stays protected as you grow.