IM Chat

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

即时通讯(IM)系统

General IM UI components. Android/iOS/RectNative ready. 通用 IM 聊天 UI 组件，已经同时支持 Android/iOS/RN。

Open source alternative communication platform.

Conversations is an open source XMPP/Jabber client for Android

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

免费IM系统，IM即时通信消息系统(含一对一文字聊天，群聊，聊天室)，免费一对一voip实时通话，录屏，webrtc服务端，免费直播连麦，互动直播，视频直播，RTSP拉流，RTMP推流，语音对讲，免费在线会议，视频会议等服务端程序，支持物联网平台，✨万水千山总是情，来个star行不行✨

golang im server

Movim - Decentralized social platform

🕊️ The world's most advanced open source instant messaging engine for 100K~10M concurrent users https://turms-im.github.io/docs

Chat SDK Android - Open Source Mobile Messenger

Open source alternative communication platform

⚡ The future of programmable SIP servers.

Spacebar server - A reimplementation of the Discord.com backend, built with Typescript and love

Build your own chat UI with React components in few minutes. Chat UI Kit from chatscope is an open source UI toolkit for developing web chat applications.

Chat SDK iOS - Open Source Mobile Messenger

Email-based instant messaging for Desktop.

Desktop client for Cabal, the p2p/decentralized/local-first chat platform.

vscode qq extension based on android qq protocol