chat-sdk

Free Chat SDK (IM SDK) — 1,000 MAU/month free forever with push notifications & no concurrency limits. Build in-app messaging with chat API, UIKit & send message. Supports Android, iOS, Flutter, Web, React Native, uni-app, HarmonyOS & more.

💬 Android Chat SDK ➜ Stream Chat API. UI component libraries for chat apps. Kotlin & Jetpack Compose messaging SDK for Android chat

Chat SDK Android - Open Source Mobile Messenger

💬 React-Native Chat SDK ➜ Stream Chat. Includes a tutorial on building your own chat app experience using React-Native, React-Navigation and Stream

Flutter Chat SDK - Build your own chat app experience using Dart, Flutter and the Stream Chat Messaging API.

💬 iOS Chat SDK in Swift - Build your own app chat experience for iOS using the official Stream Chat API

Chat SDK iOS - Open Source Mobile Messenger

React Chat SDK ➜ Stream Chat 💬

SDK monorepo for Ethora chat / messaging platform. (1) Pick an SDK for your frontend stack. (2) Integrate manually or using ethora-setup. (3) Optionally configure app settings, deploy AI agents etc. Server: ethora.com cloud [free]. Dedicated server + SLA option for enterprise customers.

SwiftUI Chat SDK ➜ Stream Chat 💬

Tinode chat client application for Android

Build chat in minutes with Sendbird UIKit open source code.

Free Chat UIKit for React — 1,000 MAU/month free forever with push notifications & no concurrency limits. Build in-app chat UI in minutes with pre-built Vue components: conversation list, large community, contact, group management.

JS / Browser Client - Build Chat with GetStream.io

A plug and play modular toolkit for integrating the Chat feature on top of Firebase!

Sendbird UIKit for iOS is a development kit with a user interface, offering a simplified integration into chat.

TalkJS (https://talkjs.com) examples

A Flutter Chat application, for android, ios and web platform, using Firebase for Google Sign In/Sign Up and exchange text, emoji and images, include user online feature

Add CometChat chat & messaging and voice & video calls to any React, Next.js, React Native, Angular, Android, iOS, or Flutter project through your AI coding agent. Works with Claude Code, Cursor, Codex, VS Code Copilot, Windsurf, Cline, Kiro, and 50+ more agents.

Build chat in minutes with Sendbird UIKit open source code.