IM Awesome

• 主要功能
  • Message
  • Presence
  • Transport
  • Notification
  • Room
  • State Sync

Open Protocol

• DDP
• IMPP
• IRC
• Matrix
• MTProto
• Retroshare
• Signal Protocol
• SIP - MSRP SIMPLE
• Tox
• XMPP - Jingle,WFP
• Zephyr

Fullstack

• Signal
  • Server AGPL-3.0, Java
  • Client GPL-3.0 iOS/Android, AGPL-3.0 Web
• Wire
  • Server AGPL-3.0, Haskell
  • Client GPLv3 Android/iOS
• mattermost/mattermost-server
  • AGPL-3.0, 官方二进制 MIT, Go+Postgre
• zulip/zulip
  • Apache-2.0, Python+Postgre
  • team chat
• wildfirechat/im-server
  • Java
  • MQTT
• Customer Chat
  • papercups-io/papercups
    • elixir

Server

• igniterealtime/Openfire
  • Apache-2.0, XMPP,Java
• tinode/chat
  • Server GPL 3.0, Go+gRPC+RethinkDB/MySQL/MongoDB
  • Client Apache 2.0, iOS/Swift+Android/Java
• OpenIMSDK/Open-IM-Server
  • Apache-2.0, Golang
  • https://docs.wildfirechat.cn/price/
• yinxin630/fiora
  • MIT, Typescript
• movim/movim
• relatedcode/Messenger
• relatedcode/RelatedChat
• turms-im/turms
• fosscord/fosscord-server
• fonoster/routr
  • SIP
• cabal-club/cabal-desktop
  • P2P
• coyim/coyim
• bitlbee/bitlbee
• miranda-ng/miranda-ng
• tox-rs/tox
• berty/berty
  • Apache-2.0, MIT, Golang
  • offline-first, peer-to-peer and zero trust messaging app

Video/Audio

• owncast/owncast
  • MIT, Golang
• meetecho/janus-gateway
  • GPLv3, C
• jitsi/jitsi-meet
  • Apache-2.0, Typescript
• jitsi/jitsi-videobridge
  • Apache-2.0, Kotlin
• jitsi/jitsi
  • Apache-2.0, Java
  • SIP, XMPP/Jabber, IRC
• bigbluebutton/bigbluebutton
  • LGPLv3, JS, Scala

Inactive

• GoBelieveIO/im_service
  • GPL-2.0, Go
• sdelements/lets-chat
  • MIT, Nodejs+MongoDB+Metor
• starrtc/starrtc-server
  • C
  • 不再维护
  • gitee 代码似乎要新一点

Client

• RocketChat/Rocket.Chat
  • MIT+EE, Nodejs+MongoDB
  • WebChat
• coyim/coyim
  • GPL-3.0, Go+XMPP
  • GUI
• chat-sdk/chat-sdk-android
• chat-sdk/chat-sdk-ios
• deltachat/deltachat-core-rust
• iNPUTmice/Conversations

XMPP

• monal-im/Monal

UI

• FaridSafi/react-native-gifted-chat
• Web
  • chatscope/chat-ui-kit-react
  • brandonmowat/react-chat-ui
• jpush/aurora-imui 通用聊天组件, Android, iOS, ReactNative

Protocol

• matrix-org interoperable, decentralised real-time communication
• 利用消息队列 MQTT，打造一款属于自己的 IM 社交软件

Bot

• yihong0618/shanbay_remember
  • 扇贝自动发送今日新词到 telegram