847 Open Source Chat Software Projects

The ultimate Free Open Source Solution for team communications.

A customizable life embetterment robot.

Zulip server and webapp - powerful open source team chat

💬 The most complete chat UI for React Native

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）

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

Elegant Facebook Messenger desktop app

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

即时通讯(IM)系统

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

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

🐀 Building a federated alternative to reddit in rust

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

An interesting chat application power by socket.io, koa, mongodb and react

Chat over SSH.

Open source, native iOS Messenger, with audio/video calls and realtime chat conversations (full offline support).

Desktop chat client for Google Hangouts

Conversations is an open source XMPP/Jabber client for Android

QQBot: A conversation robot base on Tencent's SmartQQ

Android library. Flexible components for chat UI implementation with flexible possibilities for styling, customizing and data management. Made by Stfalcon

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

ChatSecure is a free and open source encrypted chat client for iOS that supports OTR and OMEMO encryption over XMPP.

HTPC/Homelab Services Organizer - Written in PHP

Web-based XMPP/Jabber chat client written in JavaScript

🤖 A JavaScript framework to create conversational UIs

Private messaging system that hides metadata

Errbot is a chatbot, a daemon that connects to your favorite chat service and bring your tools and some fun into the conversation.

The extensible chat client.

Flutter仿微博客户端, 包含首页、视频、发现、消息(仿微博聊界面)及个人中心模块

Desktop application for Instagram DMs

【重要通知：WebQQ将在2019年1月1日停止服务，此项目目前已停止维护，感谢大家四年来的一路陪伴】使用Perl语言（不会没关系）编写的smartqq/webqq客户端框架（非GUI），可通过插件提供基于HTTP协议的api接口供其他语言或系统调用

Open-source XMPP client for Android

the first third-party instant messaging client for Google Hangouts

Real time chat app written in Swift 5 using Firebase

基于Netty+TCP+Protobuf实现的Android IM库，包含Protobuf序列化、TCP拆包与粘包、长连接握手认证、心跳机制、断线重连机制、消息重发机制、读写超时机制、离线消息、线程池等功能。

开源即时通讯(野火IM)系统Android端

A distributed, serverless, peer-to-peer chat application on IPFS

golang im server

Exports Discord chat logs to a file

:speech_balloon: A UI framework for building messenger interfaces on iOS

Live Helper Chat - live support for your website. Featuring web and mobile apps. Supports Telegram, Twilio (whatsapp), Facebook messenger including building a bot.

MongooseIM is a mobile messaging platform with focus on performance and scalability

Modern XMPP ("Jabber") Chat Client using GTK+/Vala

JavaScript-based multi-user chat client for XMPP.

A Real Time Chat Application built using Node.js, Express, Mongoose, Socket.io, Passport, & Redis.

Complete chat application, built with Chatkit | by @lukejacksonn

网易云信 iOS UI 组件，提供聊天界面，文本消息，图片消息，语音消息，视频消息，地理位置消息，自定义消息（阅后即焚）等消息示例。#推荐好友使用网易云信#每单可得500元京东卡！https://yunxin.163.com/promotion/recommend

:speech_balloon: Easy way to create conversation chats

使用Perl语言（不会没关系）编写的个人账号微信/weixin/wechat客户端框架（非GUI），可通过插件提供基于HTTP协议的api接口供其他语言或系统调用

A highly-customizable web-based client for Azure Bot Services.

:speech_balloon: A community-driven python bot that aims to be as simple as possible to serve humans with their everyday tasks

A Matrix homeserver written in Rust.

Movim - Decentralized social platform

Legacy mobile Rocket.Chat client in Swift for iOS

Forum software, brings together the best from StackOverflow, Discourse, Slack, Reddit, Disqus.

Secure chat software for your computer.

Websocket chat room written in PHP based on workerman.

OpenVidu Platform main repository

Official OSX, Windows, and Linux Desktop Clients for Rocket.Chat

Ncurses based XMPP client

Facebook protocol plugin for libpurple (moved from jgeboski/purple-facebook)

The chat app made by Flutter and Firebase

Legacy mobile Rocket.Chat client in Kotlin for Android

A simple and beautiful Vue chat component backend agnostic, fully customisable and extendable.

Instant disposable single-binary live chat server. Go + VueJS.

开源的即时通讯(野火IM)系统

Chatbot in 200 lines of code using TensorLayer

Awesome chat widget for your React App

A chat application implemented using Socket.io, TypeScript, Angular and Angular Material components

A light-weight UITextView subclass that automatically grows and shrinks.

:octocat: 📱A chat application for GitHub. React + PWA + Node(koa2) + Typescripts + Mysql + Socket.io

:rocket: lightweight high-performance WebSocket framework （ 轻量级、高性能的WebSocket框架）

goim server write by golang !🚀

Convos :busts_in_silhouette: is the simplest way to use IRC in your browser

💘🍦🙈Vchat — 从头到脚，撸一个社交聊天系统（vue + node + mongodb）

Spring Boot WebSocket Chat Demo with SockJS fallback and STOMP protocol

Wise and powerful personal assistant, available in your nearest terminal

Websocket based group chat app built with socket.io and react.

Open Source Social Network (OSSN) is a social networking software written in PHP. It allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests. It is available in 16 international languages.

The most complete open source conversational Marketing alternative to Intercom, Drift, Zendesk...

A Laravel chat package. You can use this package to create a chat/messaging Laravel application.

An UITextView in Swift. Support auto growing, placeholder and length limit.

微信聊天框架搭建，高仿微信聊天框架，一步步学习聊天框架的搭建

Fullstack Boilerplate GraphQL. Made with React & Prisma + authentication & roles + upload file + chat

一个轻量级、高效率的支持多端（应用与硬件Iot）的可分布式、异步网络应用通讯框架

:speech_balloon: Chat application built with NodeJS and Material Design

Android Real Time Chat & Messaging SDK

Laravel Video Chat using Socket.IO and WebRTC

Email-based instant messaging for Android.

a minimal, distraction-free chat application

Secure direct video group chat

Web-based IRC client in Go.

Intercom-style live chat window written in react

Twitch Chat Client written in Java

Multiparty web-meetings using mediasoup and WebRTC

Zulip Desktop Client

An IRC to other chat networks gateway :bee:

:purple_heart: Chatting plugin for neovim and vim8

🖱️ Vue directive to keep things scrolled to the bottom.

A Laravel package that allows you to add a complete user messaging system into your new/existing Laravel application.