240 Open Source Chat Application Software Projects

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

Open source, native iOS Messenger, with realtime chat conversations (full offline support).

Desktop application for Instagram DMs

Open-source live customer chat

golang im server

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

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。#推荐客户得比特币/京东卡，现在推荐使用网易云信，最低得0.02BTC或3000元京东卡/单，点击参与：https://yunxin.163.com/promotion/recommend

Otto makes machine learning an intuitive, natural language experience. 🏆 Facebook AI Hackathon winner ⭐️ #1 Trending on MadeWithML.com ⭐️ #4 Trending JavaScript Project on GitHub ⭐️ #15 Trending (All Languages) on GitHub

fb-messenger-cli, console Facebook messenger

Chat with features : Login with Google | Send Photo Camera | Send Photo Gallery | Send Location

A feature-rich chat widget for Rasa and Botfront

Mibew Messenger - open-source live support application

A Qt5-based IM client for Matrix

The Grass Computing Platform

Real-time Messenger for Laravel

End-to-end encrypted instant web chat

🌟🌟🌟🌟🌟 Falcon Messenger is a Fast and Beautiful cloud-based messaging app. With iOS and IPadOS Support. Available on the App Store.

A full-fledged one-to-one chat app developed entirely in Flutter

❯❯❯ Chat without leaving your terminal

Android Chat SDK built on Firebase

A real time chat app for developers built using React, Redux, Electron and Firebase

Astus' Mathematical Display Application : A GUI for Mathematics (Calculator, LaTeX Converter, Plotter, ... )

💬 Nio is an upcoming matrix client for iOS.

Public & Private message. MySQL & Firebase.

Tinode web chat using React

android client

A conference call implementation using WebRTC, Socket.io and Node.js

🔥 A highly advance featured chat app in android using Firestore

💬 A simple facebook/linkedin lookalike chat module for Angular applications.

React Native chat application using firebase.

Official Applozic's iOS SDK for Real-Time Chat & Messaging.

Technitium Bit Chat, a secure, peer-to-peer, instant messenger!

Simple Android Chat using Firebase :books: :books:

Tinodios: Tinode Messaging Client for iOS

Chat SDK for iOS. Build your own chat experience for iOS using the official Stream Chat API Swift SDK

Simple Firebase based Android Messaging Chat App.

Reference server implementation of the Harmony protocol.

A "Discord clone" with Socket.io, Node.js & MongoDB... Create channel, invite other people to your channel, chat with everyone...

Chat app backend using Nest framework

Frontend of real-time chat application built using nuxtjs, socket.io. Check the backend at https://github.com/binbytes/chat-app-server.

Demo Application for https://github.com/musonza/chat/

Unofficial desktop messaging client for Tinder.

Easy to use Vue chat.

Flutter Plugin for TDLib (Telegram Database Library)

Firebase cloud functions for Chat21. It's the server engine of Chat21 hosted on Google Firebase

Chat via nearby persons. Instant, Secure, Anonymously. 🕶

UcxUcc is a simple but powerful team collaboration suite of applications designed to improve communications, information sharing and productivity for the businesses small and large.

IONIC Chat With Firebase

:rocket: :stars: Real Time Chat Application created with MEVN Stack

Example of a real-time chat system built with the Laravel WebSockets package, VueJs, and Laravel-echo.

unplug : desktop client for matrix.org (work-in-progress)

MyS3Chat – Complete Open Source Real Time Android Chat Application using Firebase

Android chat demo app with Chat21 SDK for Firebase

💬 ChatViewController, ChatBar, ImagePicker like Slack Application. Message App written in Swift

Source File for Tutorial Video of Firebase Android.

**Deprecated** Real time chat app written in Swift 4 using Firebase and OTP Authentication

C# client library for Twitch, YouTube Live, and other streaming services

MEAN Stack & Socket.IO Real-time Chat App | A MEAN stack based Real Time chat application

🇮🇳 Open source Indian Chat application with new cool concepts.

Real time chat (audio,video and text) system done in Django, angular4 and ionic.

A one-to-one chat app (similar to WhatsApp) built using Kotlin and Firebase.

This is the simple Chat Application in which user can join the room and continue chatting with others.

Live Chat using Django REST Framework

:lock_with_ink_pen: Pure Browser To Browser Chat (STUN & ICE Servers optional)

:bell: Easy to use chat user interface for React

Link to the package -. https://pub.dartlang.org/packages/flutter_chat_bar

Node.js socket-io based one to one chat engine

JetGram is an open source desktop app Telegram clone made with JavaFx.

This is a flutter based modern messaging app where users can sign up and log in to chat with their friends, family, colleagues among groups with enriched User-Experience.

Messenger(Chat app) is a real time one to one chat application with Push Notifications made using Firebase...

Chat application created with gRPC. This was a study for bidirectional gRPC streaming.

Open-source JavaScript SDK to enable Real-time Messaging

This Sample Android chat app is built using Channelize.io Android API and UI SDKs.

Silent is very lightweight, high quality - low latency voice chat for gaming. The server runs on Windows and Linux.

Demo simple chat app using laravel and socket.io

Team Chat Reference Application for PubNub Chat With React, Redux and TypeScript

Open-source JavaScript Chat UI Kit to build your own chat experience.

Tinode javascript bindings

A clone of Whatsapp web client 🌀

Laravel messenger demo app using rtippin/messenger. Private and group threads with real-time messaging, reactions, attachments, calling, chat bots, and more!

💬 A PreactJS powered progressive web (chat) application (Not active)

🧠 Create chatbots easily with Bot Framework! 🤖

OpenDialog is a Conversational Experience Platform - the starting point for your own conversational applications.

Startalk is a high-performace IM software for business. It has been stably used in Qunar for more than 4 years, providing services as well as consultation after and before sales to business. Startalk is applicable to multiple scenarios, such as office automation, business services, and first-party SDKs for IM scenes

:cloud: A sample chat application using Node.js, RequireJs and Socket.io

[Maintainer Required] Dialogflow Django is a web client to chat :sparkling_heart:

the safest place to reach out

Chatbot – is a computer program that simulates a natural human conversation. Users communicate with a chatbot via the chat interface or by voice, like how they would talk to a real person.

A simple chat client built in React for communicating with the node-multi-server-chat example

A client-server chat app in Python.

Open-source React Native Chat UI Kit to build your own chat experience.

Open-source chatting application powered by Google's Firebase.

Template project for configuring websockets with spring

A messenger demo app for Android using ConnectyCube platform

Chat on your terminal with other users through a gRPC service

🕊️🔒💬 A P2P end-to-end encrypted messaging app

A Team Collaboration Suite

Building a distributed chatroom with Raxx.Kit

A mesh topology multi-server chat example built with Node and Socket.io