Chat Open Source Projects

🤖 Lobe Chat - an open-source, high-performance chatbot framework that supports speech synthesis, multimodal, and extensible Function Call plugin system. Supports one-click free deployment of your private ChatGPT/LLM web application.

The Secure CommsOS™ for mission-critical operations

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

LLM Frontend for Power Users.

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Teaching LLMs memory management for unbounded context 📚🦙

🆓免费的 ChatGPT 镜像网站列表，持续更新。List of free ChatGPT mirror sites, continuously updated.

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

AI 工具导航大全，帮你快速筛选免费、实用、高效的网站资源

A customizable life embetterment robot.

IM Chat OpenClaw

Jupyter metapackage for installation and documentation

🐀 A decentralised discussion platform for communities.

💬 The most complete chat UI for React Native

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

Saves Discord chat logs to a file

Botkit is an open source developer tool for building chat bots, apps and custom integrations for major messaging platforms.

Take control over your live stream video by running it yourself. Streaming + chat out of the box.

微信助手：1.每日定时给好友（女友）发送定制消息。2.机器人自动回复好友。3.群助手功能（例如：查询垃圾分类、天气、日历、电影实时票房、快递物流、PM2.5等）

All-in-one LLM CLI tool featuring Shell Assistant, Chat-REPL, RAG, AI Tools & Agents, with access to OpenAI, Claude, Gemini, Ollama, Groq, and more.

The Python package installer

Self-hosted chat app for small teams

Keybase Go Library, Client, Service, OS X, iOS, Android, Electron

Modern Telegram Bot Framework for Node.js

即时通讯(IM)系统

Wechat Chat History Exporter 微信聊天记录导出备份程序

Mumble is an open-source, low-latency, high quality voice chat software.

bridge between mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API (mattermost not required!)

Elegant Facebook Messenger desktop app

Create Minecraft bots with a powerful, stable, and high level JavaScript API.

An interesting open source chat application. Developed with node.js, mongoDB, socket.io and react

telegram-cli

Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

A truly monstrous async web chat using no JS whatsoever on the frontend

Venom is a high-performance system developed with JavaScript to create a bot for WhatsApp, support for creating any interaction, such as customer service, media sending, sentence recognition based on artificial intelligence and all types of design architecture for WhatsApp.

The most powerful virtual list component for React

💬 ‎ Modern, responsive, cross-platform, self-hosted web IRC client

A community-driven replacement for JSQMessagesViewController

Open-source live customer chat

OpenAI API Free Reverse Proxy

Chat over SSH.

HTPC/Homelab Services Organizer - Written in PHP

💬 Unofficial WeChat client built with React, MobX and Electron.

Pagekit CMS

🎈 Simple reactive notebooks for Julia

Telegram for Windows

2026最新悄咪咪收集的10000+个Telegram群合集、tg导航，附全网最有趣好用的机器人BOT🤖【tg10000.com】

Lightweight full-featured WhatsApp Web + Multi-Device API

More than just IM 不只是即时通讯(IM)

Messenger

A lightweight framework to build chat applications, made in Swift

The UI design language and React library for Conversational UI

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

Conversations is an open source XMPP/Jabber client for Android

中文公开聊天语料库

This is a code repository for the corresponding YouTube video. In this tutorial we are going to build and deploy a real time chat application. Covered topics: React.js, Node.js, Express.js, and Socket.io.

The devs are over here at devzat, chat over SSH!

🖥️ P2P Remote Desktop - Portable peer-to-peer remote desktop with no installation required.