GitHub stars · StarDay

1openimsdk / open-im-serverIM Chat OpenClawGoApache-2.0 · Permissive16,756

2crossoverJie / cim📲cim (cross IM) distributed instant messaging system suitable for developersJavaMIT · Permissive9,490

3wildfirechat / im-serverInstant messaging (IM) systemJavaLicense not declared8,574

4JackJiang2011 / MobileIMSDKThe original full-platform IM communication layer framework is lightweight, highly refined, and has been tested for 10 years. It may be the only open source framework of its kind on the market that supports three protocols: UDP+TCP+WebSocket. It supports iOS, Android, Java, H5, applets, Uniapp, and Hongmeng Next. The server is based on Netty.Objective-CApache-2.0 · Permissive6,095

5WuKongIM / WuKongIMMore than just IM More than just IMGoApache-2.0 · Permissive4,991

6starrtc / starrtc-android-demo🚀starRTC, instant messaging (IM) system, free IM system (including single chat, group chat, chat room, file transfer), free one-on-one video chat, VOIP, voice intercom (echo cancellation), live broadcast, video live streaming, RTSP streaming, RTMP streaming, webRTC server, online education, whiteboard, small class, online meeting, video conferencing, video monitoring, LAN direct connection (no server required), compatible with webRTC, Supports webRTC acceleration, P2P high-definition transmission, Android, iOS, web interoperability, supports access control intercom, video intercom, TV box, Raspberry Pi, HiSilicon, Allwinner, Nintendo switch, cloud games, OTT equipment, IoT platform, C language self-development solution, supports secondary development into WeChat-like, Yingke-like and other APPs, ✨Thousands of rivers and mountains are always in love, can you star✨, for more examples, please visit:License not declared3,778

7mpusher / mpushMPush open source real-time message push systemJavaApache-2.0 · Permissive3,766

8msgbyte / tailchatNext generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chatTypeScriptApache-2.0 · Permissive3,644

9TangSengDaoDao / TangSengDaoDaoServerHighly attractive IM messaging app for chattingGoApache-2.0 · Permissive3,633

10juggleim / im-serverIM Chat, High-performance, scalable, self-hosted instant messaging server in Go — private chat, groups, chatrooms, WebSocket and REST APIs.GoApache-2.0 · Permissive3,540