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Browse free open source Chat software and projects below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

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  • Yeastar: Business Phone System and Unified Communications Icon
    Yeastar: Business Phone System and Unified Communications

    Go beyond just a PBX with all communications integrated as one.

    User-friendly, optimized, and scalable, the Yeastar P-Series Phone System redefines business connectivity by bringing together calling, meetings, omnichannel messaging, and integrations in one simple platform—removing the limitations of distance, platforms, and systems.
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  • 1
    FetLife for Android

    FetLife for Android

    The FetLife App on Android

    This is the FetLife open source application made for Android. FetLife is the app for Kinksters who want to chat with fellow Kinksters, find out where the nearest FetLife events are happening, view other members’ profiles, and many other kinky things. With FetLife on Android, it’s easier than ever to access all the things you love about FetLife. Get notified on your Android phone so you stay on top of conversations and discussions, and discover the latest events on the app’s map. Want to be discreet? No problem, as the FetLife app comes with discreet mode so you can use the app freely without worries.
    Downloads: 28 This Week
    Last Update:
    See Project
  • 2
    Facebook SDK for Android

    Facebook SDK for Android

    Used to integrate Android apps with Facebook Platform

    This open-source library allows you to integrate Facebook into your Android app. Integrate your Android app with Facebook to build engaging social apps by using the Facebook SDK for Android. To learn more about using Facebook development tools. The current version of the Facebook SDK for Android is version 11.2.0 and requires the Android API 15. Code and samples for the Facebook SDK for Android are available on GitHub. A secure and convenient way for people to log into your app or website by using their Facebook credentials. Enable people to post to Facebook from your app. People can share, send a message, and share to stories. Understand people's actions in your app and measure the effectiveness of your Mobile App Ads. Get data in and out of Facebook's social graph, query data, post stories, upload photos and perform other tasks.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 3
    ssh-chat

    ssh-chat

    Chat over SSH

    ssh-chat is a custom SSH server written in Go that allows you to chat over SSH connection. When you open your terminal and type in a command, instead of getting a shell you get a chat prompt. With ssh-chat you get a simple chat room over a secure shell connection, where you can send and receive private messages, check any user's public key fingerprint for identification purposes, and more. You can change the color theme of the chat, block or kick users, and chat on just about any platform where an SSH client is available, including on mobile.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 4
    phpFreeChat is a free, simple to install, fast and customizable chat that uses by default files for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone.
    Downloads: 18 This Week
    Last Update:
    See Project
  • We help you deliver Virtual and Hybrid Events using our Award Winning end-to-end Event Management Platform Icon
    We help you deliver Virtual and Hybrid Events using our Award Winning end-to-end Event Management Platform

    Designed by event planners for event planners, the EventsAIR platform gives you the ability to manage your event, conference, meeting or function with

    EventsAIR have been anticipating and responding to the ever-changing event industry needs for over 30 years, providing innovative solutions that empower event organizers to create successful events around the globe.
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  • 5
    aMSN

    aMSN

    MSN compatible messenger application

    A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux
    Downloads: 13 This Week
    Last Update:
    See Project
  • 6

    MudMaster 2k6

    Up to date MUD client evolved from the original MudMaster

    Next generation MudMaster GUI. Win32 GUI MUD client with triggers, aliases, scripting, and DLL plugins for extra features such as displaying chat and other in game channels in a separate window. Now supports a multi-line, variable width status bar and multiple interacting windows. User customized script buttons in the status bar let you add mouse click functionality. Has web interactivity via the /showMeViaWeb command. Mudmaster 2k6 also can be run on Linux under WINE. Questions? Ask them in our Sourceforge Forums ( https://sourceforge.net/p/mm2k6/discussion/ ) More at http://mm2k6.sourceforge.net/mm2k6/
    Downloads: 11 This Week
    Last Update:
    See Project
  • 7
    Dolphin Pro - Social Network Platform

    Dolphin Pro - Social Network Platform

    Open-source social network CMS and mobile apps.

    Dolphin Pro is a full-featured integrated Social CMS. Dolphin includes media server, video converter, media sharing modules, social profiles, chat, messenger, timeline, events, groups, store, blogs, forums and more.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 8
    Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 9
    UNA

    UNA

    PHP & MySQL based CMS with messenger

    Full featured CMS with social features. It has limited functionality by default and can be extended with additional modules. Additional modules includes such features as Education solution, Video Messenger, Events, Polls, Tasks, Forum, Market, Videos, Video Streaming and more
    Downloads: 10 This Week
    Last Update:
    See Project
  • ThreatLocker Cybersecurity Software Icon
    ThreatLocker Cybersecurity Software

    Giving you complete control to help you manage your applications and better protect your endpoints.

    The Zero Trust security solution that offers a unified approach to protecting users, devices, and networks against the exploitation of zero day vulnerabilities.
    Learn More
  • 10

    Darkbot

    The IRC's Talking Robot

    [ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
    Leader badge">
    Downloads: 8 This Week
    Last Update:
    See Project
  • 11
    Museek-Plus is a program-suite for the C++ museek daemon, a Soulseek/Soulfind P2P client. It includes the QT GUI, Museeq, and the Python/Curses TUI, Mucous. It supports chat, transferring files, searching, user-management shares browsing and more.
    Leader badge">
    Downloads: 4 This Week
    Last Update:
    See Project
  • 12
    RevConnect is a file sharing program based on DC++. It is fully compatible with the Direct Connect network and made some major features.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    XDCC Browser
    XDCC Browser A mIRC based XDCC download manager.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    A two floppies Linux distribution with a graphical web browser (links with SVGALIB), a text mode IRC client (rhapsody), configuration scripts with "dialog" front-ends, almost all of the Ethernet drivers from the latest 2.6.x kernel, PPP, ssh and more.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    OpenRPG is an Internet application that allows people to play Role Playing Games and some miniature based war games in real-time over the Internet. OpenRPG helps facilitate character tracking, miniature battles, and adventure building.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 16
    An IRC(u) services server framework written in C++. This server framework is capable of supporting as many individual clients as the protocol supports. Each client can be custom made by subclassing an existing fully functioning client.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 17
    linpal palace client
    This software is a Linux based client for various Palace servers. It is written in C++ using gtk+ 2 as the framework.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 18
    Chat program that is currently in development. Started as a LAN chatting program which was expanded to a internet/LAN chat programis. Features are: Port Changing, Connect to any IP, File Send, Save/Export ChatLog, Sound. MultiUser, AIM also to come
    Downloads: 4 This Week
    Last Update:
    See Project
  • 19

    Meanwhile

    Open implementation of the Lotus Sametime protocol

    THIS PROJECT HAS MOVED Please visit https://github.com/obriencj/meanwhile The Meanwhile project is an open implementation of the Lotus Sametime client protocol. The project provides a library written in C, a python module, and a Gaim plugin utilizing the library.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 20
    A collection of practical and useful PHP scripts which impose minimum requirements to hosting systems. Currently it contains a gallery, chat, blog and snippets collection scripts.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 21
    A live Help support chat system in PHP that allows the operators of the websites to monitor their visitors as they are browsing the site and proactively open a chat session with the visitor . Mysql database, messages, auto invite
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    Gamers.IRC

    Gamers.IRC

    Full mIRC MSL Script

    Gamers.IRC is a full MSL Script for mIRC, the most popular Windows IRC client. Gamers.IRC is for Windows 95 and higher. Source code: Download and run the installer. Open the .grc and .ini files with notepad.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    A fork of WASTE 1.5.0.408 beta 3 starting form 1.5.1.412 beta 3
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Pueblo/UE
    The Pueblo MUD/MUSH/MOO/etc client, originally developed by Chaco Communications. Updated, improved, and open source! The client provides access to "virtual worlds", supporting HTML, colour, forms, and images.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 25
    deVilScript
    The freeware add-on script for the IRC chatting client mIRC®.
    Downloads: 3 This Week
    Last Update:
    See Project
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