Chat Software for Windows

View 116 business solutions

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

  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 1
    BeeBEEP (Free Office Messenger)

    BeeBEEP (Free Office Messenger)

    You can message and share files inside your intranet without a server.

    BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement. For more info visit: https://www.beebeep.net
    Leader badge
    Downloads: 2,138 This Week
    Last Update:
    See Project
  • 2
    DC++

    DC++

    A Windows client for the Direct Connect networks

    DC++ is an open source Windows client for the Direct Connect file sharing network. The DC network is a decentralized network, made up of individual servers (hubs) that users join to share files with other members on that hub. Each hub is individually run by a fellow user of the DC network, and may have certain themes to the content on the hub. Hub owners set up rules to regulate their hub as they see fit.
    Leader badge
    Downloads: 1,293 This Week
    Last Update:
    See Project
  • 3
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
    Leader badge
    Downloads: 5,972 This Week
    Last Update:
    See Project
  • 4
    Psi+

    Psi+

    Psi+ Project — development branch of Psi XMPP client

    Psi is a cross-platform powerful XMPP client designed for experienced users. Psi+ is a development branch of Psi XMPP client. Previously is was a sort of fork but now just consider it as a space for nightly builds.
    Leader badge
    Downloads: 574 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
    Start Free
  • 5
    ApexDC++

    ApexDC++

    The pinnacle of file-sharing and chat - an innovative DC client!

    ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section.
    Leader badge
    Downloads: 162 This Week
    Last Update:
    See Project
  • 6
    EiskaltDC++

    EiskaltDC++

    Program for filesharing using Direct Connect and ADC protocols

    EiskaltDC++ is a cross-platform program that uses the Direct Connect and ADC protocols. It is compatible with DC++, FlylinkDC++, LinuxDC++ and other DC clients. EiskaltDC++ also interoperates with all common DC hub software.
    Leader badge
    Downloads: 79 This Week
    Last Update:
    See Project
  • 7
    phpMyChat

    phpMyChat

    Standalone chat system developed in php, mysql and javascript

    phpMyChat-Plus is an easy-to-install, easy-to-use multi-room PHP/DB chat. It is currently available for MySQLi, MariaDB, PostgreSQL, and ODBC. It supports IRC-like commands, moderators, is available in 24 languages and fully compatible with php7.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 8
    Mibew Messenger 1.x
    "Mibew Messenger" - is unique software allowing visitors of your site to chat with your operators. This repo should be treated as an obsolete. For modern version of Mibew Messenger see https://sourceforge.net/projects/mibew/
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    Nicotine+ is a fork of Hyriand's Soulseek PyGTK2 client, Nicotine. Fixing bugs, adding new features, and keeping up-to-date with Soulseek's protocol is the goal of this project. The most popular Multi-OS Soulseek client is getting an upgrade.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    Mibew Messenger 3
    Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.
    Leader badge
    Downloads: 5 This Week
    Last Update:
    See Project
  • 11
    Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Coolsmile IRC Client
    Friendly Java IRC client, runnable either as web applet or desktop application. It is based on Eteria IRC client, with many improvements.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    DCWatch is a DCWL (DCWatch Library) based program. It's working on the new DirectConnect (ADC) network. You can create hubs and bots with extra features. It supports TIGR, SHA1 and UCMD extensions of ADC protocol, and Lua scripts.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Flatch@ is yet another client-server chat application for the WEB. PHP on the server side, Java applet on the client, very easy installation, firewall-friendly (HTTP communication), multiple rooms, private channels, support for end-to-end encryption.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Chat client based on JavaFX
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    JavaHub is a Direct Connect hub-server, completely implemented in Java 2 SE 1.5. Later on it might get a UI, too.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18

    MSGer

    A chat program with invitation only...

    The project is now open source again: https://github.com/NorbiPeti/msger
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    NN - NexusChat

    NN - NexusChat

    NexusChat the convenient to chat/NexusChat a kenyelmes csevegeshez

    Professional IRC client for everyone. If you find someone error in the client can be report here: https://www.facebook.com/nexusnetwork.pw or here https://twitter.com/_Nexusnetwork_ If you have an idea what to do should plugin then to the above of addresses you can write. ---------------------------------------------------------------- Professzionális IRC kliens mindenki számára. Ha talál valaki hibát a kliensben akkor itt lehet jelenteni: https://www.facebook.com/nexusnetwork.pw vagy itt https://twitter.com/_Nexusnetwork_ Ha van ötleted milyen bővítményt kellene csinálni akkor a fenti címeken lehet írni. (Magyar nyelvet akkor lehet kiválasztani,ha első indítás után újra indítod a klienst. Megjegyzés: magyar nyelv még nem teljes)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    An internet lobby application for online racing of RC racing game Re-Volt
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    NOTE: This code has not been updated since 2005. Keeping it here for historical purposes. NOTE2: The code will not most probably compile against latest SILC libraries or with latest GTK either. Silky WAS a secure chat client for SILC (Secure Internet Live Conferencing) protocol. The code is written in C and the GUI is implemented using the GTK toolkit. Supported operating systems include Linux and Windows.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    WebAPP: Web Automated Perl Portal is easily installed on virtually any UNIX-based server which is provided by all modern hosting plans. WebAPP is the most fully-featured, versatile, free and open-source, flat-file Perl portal script available today! ----
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23

    Y.V.S-Bot

    A Discord BOT using Discord.js

    The BOT is used in our Discord server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    YnM Irc Szkript
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    eZebra is a new p2p program with functions similar at eMule and Shareaza but we do not take it as a MOD of any of both. We understand it as "the start point of a new p2p generation". And we need you to make us believe we can do better!
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.