Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots

Chat SDK (IM SDK) — Build in-app messaging with chat API, UIKit & send message capabilities. Supports Android, iOS, Flutter, Web, React Native, uni-app, HarmonyOS & more. Features: one-to-one chat, group chat, message push, real-time messaging, offline push, chat UI components.

✉️ Send/Receive data between React Native app and WebView

LINE Messaging's private API

Build chat in minutes with Sendbird UIKit open source code.

LINESimulator

TalkJS (https://talkjs.com) examples

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

Vonage Server SDK for Java. API support for SMS, Messages, Voice, Text-to-Speech, Numbers, Verify (2FA), Video and more.

RESTful WhatsApp messaging API with Express.js and Baileys library

Build chat in minutes with Sendbird UIKit open source code.

Code samples for Flutter, based on ConnectyCube platform

Mats3: Message-based Asynchronous Transactional Staged Stateless Services

[Deprecated] Sendbird Chat SDK for iOS in Objectivce-C for enablement of a rich, engaging, scalable, and real-time chat service.

一個將Discord與Line訊息同步的聊天機器人 目前支援：文字/圖片/影片/語音訊息 (A bot that synchronize messages between Discord and Line. Supported text/image/video/audio messages)

Sendbird Chat SDK for Flutter

LINE Flex 開發人員工具

Botpress messaging server

LINE Messaging API SDK for Rust

Build chat in minutes with Sendbird UIKit open source code and samples.