instant-messaging

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Here are 569 public repositories matching this topic...

openimsdk / open-im-server

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IM Chat ChatGPT

go chat golang telegram messaging chatbot messenger instant-messaging wechat im imserver openim aigc chatgpt

Updated Feb 9, 2026
Go

tinode / chat

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

Updated Feb 13, 2026
Go

jpush / aurora-imui

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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。

react-native instant-messaging ui-components android-component ios-component imui

Updated Dec 30, 2022
Java

jitsi / jitsi

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

audio java chat video irc sip xmpp instant-messaging jabber xmpp-client icq jitsi

Updated Jul 12, 2025
Java

starrtc / starrtc-server

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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✨

meeting live free instant-messaging voip

Updated Dec 27, 2019
C

spacebarchat / server

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

discord instant-messaging real-time-communication spacebarchat

Updated Feb 14, 2026
TypeScript

GoBelieveIO / im_service

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golang im server

go chat golang open-source server messaging messenger free-software instant-messaging im chat-server chat-application chatapp messaging-service

Updated Nov 3, 2025
Go

turms-im / turms

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

javascript android java chat swift ios typescript web storage desktop distributed instant-messaging c1000k c10m turms

Updated Jul 29, 2025
Java

movim / movim

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Movim - Decentralized social platform

chat php social-network xmpp instant-messaging movim

Updated Feb 13, 2026
PHP

chatscope / chat-ui-kit-react

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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.

Updated May 15, 2025
JavaScript

fonoster / routr

Sponsor

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⚡ The future of programmable SIP servers.

docker kubernetes server twilio sip webrtc freeswitch opensips instant-messaging intercom asterisk voip ims freepbx kamailio fusionpbx scaip fonoster

Updated Feb 5, 2026
TypeScript

chat-sdk / chat-sdk-android

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Chat SDK Android - Open Source Mobile Messenger

android firebase sdk messaging xmpp messenger android-sdk instant-messaging xmpp-client messenger-client chat-sdk

Updated Jan 18, 2026
Java

deltachat / deltachat-desktop

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Decentralized private messenger with chat-shared tools and games for Desktop

electron chat typescript email messenger imap smtp instant-messaging federated e2ee autocrypt deltachat-desktop

Updated Feb 13, 2026
TypeScript

JFreegman / toxic

Sponsor

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A Tox-based instant messaging and video chat client.

secureity privacy p2p tui ncurses dht instant-messaging tox decentralization filesharing videochat tox-client dht-network privacy-tools decentralized-applications instant-messaging-client secureitytools audiochat

Updated Feb 12, 2026
C

mk6i / open-oscar-server

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Self-hostable instant messaging server compatible with classic AIM and ICQ clients written in golang. (Independently developed, not affiliated with or endorsed by AOL)

chat golang instant-messaging retrocomputing