instant-messaging
Tracked open-source repos tagged instant-messaging, sorted by stars.
Related topics
Topics that frequently appear alongside instant-messaging on the same repo.
Recent risers
Repos created in the last 90 days, tagged instant-messaging.
No new repos tagged with this topic in the last 90 days.
- #1
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
★ 13,473-1Star change over the last 7 days - #2
Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.
★ 4,335+1Star change over the last 7 days - #3
IM Chat, High-performance, scalable, self-hosted instant messaging server in Go — private chat, groups, chatrooms, WebSocket and REST APIs.
★ 3,542+1Star change over the last 7 days - #4
Free Chat SDK (IM SDK) — 1,000 MAU/month free forever with push notifications & no concurrency limits. Build in-app messaging with chat API, UIKit & send message. Supports Android, iOS, Flutter, Web, React Native, uni-app, HarmonyOS & more.
★ 2,741+0Star change over the last 7 days - #5
Spacebar server - A reimplementation of the Discord.com backend, built with Typescript and love
★ 2,199+2Star change over the last 7 days - #6★ 2,050+1Star change over the last 7 days
- #7
golang im server
★ 1,983+0Star change over the last 7 days - #8
🕊️ The world's most advanced open source instant messaging engine for 100K~10M concurrent users https://turms-im.github.io/docs
★ 1,921+2Star change over the last 7 days - #9
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.
★ 1,773+1Star change over the last 7 days - #10★ 1,710-1Star change over the last 7 days
- #11
Chat SDK Android - Open Source Mobile Messenger
★ 1,641-1Star change over the last 7 days - #12
Decentralized private messenger with chat-shared tools and games for Desktop
★ 1,602+2Star change over the last 7 days - #13
Self-hostable instant messaging server compatible with classic AIM and ICQ clients written in golang. (Independently developed, not affiliated with or endorsed by AOL)
★ 1,551+41Star change over the last 7 days - #14★ 1,305+1Star change over the last 7 days
- #15
The IM for agents. Shared Agent Context & Memory, supervised execution, and cross-agent audit across AI providers.
★ 973+0Star change over the last 7 days - #16
Chatmail Rust Core library, used by Android/iOS/desktop chatmail apps, bindings and bots 📧
★ 928+4Star change over the last 7 days - #17
Chat SDK iOS - Open Source Mobile Messenger
★ 920+0Star change over the last 7 days - #18
Desktop client for Cabal, the p2p/decentralized/local-first chat platform.
★ 915+0Star change over the last 7 days - #19
🐙 The Go backend powering OCTO — an open workplace built for humans × AI agents. REST & WebSocket APIs, Lobster (AI agent) orchestration, and WuKongIM real-time messaging control plane.
★ 823+19Star change over the last 7 days - #20
JiwuChat 🍂 - A lightweight cross-platform instant messaging app with integrated AI assistants (DeepSeek/Gemini/Kimi). Features real-time messaging, audio/video calls, multi-device sync, and customizable themes. Built with Vue3 & Tauri2 🍒
★ 744+0Star change over the last 7 days - #21★ 669+0Star change over the last 7 days
- #22★ 644+0Star change over the last 7 days
- #23
A full-featured team chat system built on Cloudflare Workers, with public/private groups, DMs, realtime messaging, file uploads, and an admin dashboard.
★ 617—Star change over the last 7 days - #24★ 615+0Star change over the last 7 days
- #25
Miranda NG: Next Generation of Miranda IM
★ 564+1Star change over the last 7 days - #26★ 525+0Star change over the last 7 days
