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.

  • 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
  • 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
    Mattermost Desktop

    Mattermost Desktop

    Mattermost Desktop application for Windows, Mac and Linux

    Mattermost Desktop is a native desktop application for Mattermost, a workplace messaging alternative to Slack. Mattermost Desktop is developed using Electron and runs on Windows, Mac and Linux.
    Downloads: 89 This Week
    Last Update:
    See Project
  • 2
    OpenSource mud client designed to work on both windows,linux and MAC OS X. Written in Gtk+ and C with SQLLite, Python, MSP, MXP, HTML, and ZMP support. Provides plugin support, automapper functionality, triggers, aliases and macros.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 3
    emesene
    emesene is a platform independent instant messaging client for the Windows Live Messenger (tm) network. emesene is distributed free of charge under the GNU General Public License 2 or any later version.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    Scicos-HDL is a tool to design digital circuit system; it integrates the hardware circuit, algorithm and Scilab/Scicos environment as a plat for digital circuit design, simulation and Hardware Description Language generation. ZhangDong & KangCai
    Downloads: 4 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 5
    Openshell project is to make everyman easily use pc.It maybe have many gui clients.Everyone have one purpose. Now active project is opener_chat.You can download it and test it. Our groups is http://groups.google.com/group/opener-com-work-team/
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    This project has been moved away from sourceforge. See http://software.schmorp.de for the new location.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Avalanche-Chat is program designet for local networks, it contains file exchange module, simple ping module, IP checking, private and public chat.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A Microsoft MSN Messenger client/library in Java
    Downloads: 0 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
    Choqok ( pronounced: tʃœˈʁʊk ) is a Free/Open Source micro-blogging client for K Desktop Environment. The name comes from an ancient Persian word, means Sparrow! Currently supports Twitter.com, Identi.ca and opendesktop.org services.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    GO Social
    All in one social network browser app provides easy access to all social networks and other useful applications in one application which makes it easy to share your most recently used apps. It includes applications such as G Mail, Messenger, Whats App, Google Drive, Google Slides, Google Duo and much more. Simultaneously it lets you access all the application. Disclaimer:- All websites featured in the app have gone through a permission process.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    The tools I am making are tools for everyday use, for example, you got a program that you cant close with the task manager, my tools can help you close it in a second, no long Dos commands. My tools should be real help to any started or advanced user!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    HardTop

    HardTop

    Make any window Always On Top!

    Windows 11/10 taskbar area application that allows toggle of any desktop window "Always On Top" state. For example keep Messenger always on top of other windows or any other application that you'd like to always have visible.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    <b>IVJ MUD (Masive Multiplayer Text Game) is a SSL-based soft:<br>-Client (GUI)<br>-Server (GUI)<br>-Applet (GUI)<br>-Protocol (SSL-based, use of localization files that store strings to reduce trafic and allow for instant i18n.<br> LOOKING FOR HELP!</b
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Linux port for the ComeMierda VB6 card-game
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Magic 8 Bot

    Magic 8 Bot

    It response is similar to Magic 8 Ball!

    = Magic 8 Bot = =============== This is a simple c# application! Its response is similar to Magic 8 Ball! Try this out and ask the funny questions! Download Link: <link> (24.0 KB) Source Link: <link> (Github) Icon from: icon8
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    MsComSpy is an application that runs on your Desktop to log all messages in and out of Microsoft Communicator. Each MS Communicator message is logged on a per user and time basis. Currently, the only GUI is a local AJAX-powered HTML page.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    The Graphical P2P Collaborate Tools for the Windows "net send". 1.Auto detect the neighborhood host. 2.Buddy management. 3.Easy message reply. 4.Message history record. 5.Live update. 6.Simple file transfer.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Pircy is a small patch to sirc and a collection of sirc scripts that gives sirc a GNOME GUI. Unlike other sirc GUI front-ends, Pircy is written entirely in perl and runs in the very same program space as the rest of sirc, allowing normal sirc scripts to
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Smuxi is a flexible, cross-platform IRC client for advanced users, targeting the GNOME desktop.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Sofia

    Sofia

    Sofia est un logiciel pour personnaliser son status discord.

    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Valaksha RPG Server/Client Engine
    Text-based RPG engine both on the server side and client side. Allows full customization and control of the world objects including: zones, monsters, characters, NPCs, items, quests, etc. All of this within a desktop application against a MySQL DB.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Yahoo FunChat

    Yahoo FunChat

    Send Fun Effects for Yahoo Messenger

    Send Fun Effects for Yahoo Messenger
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    ezUnison automates synchronizing files between sets of computers connected through SSH or Gaim, monitoring the filesystem in real-time, and notifying the user of conflicts by modifying the filenames of conflicting files.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    littleface is MVC j2ee framework,also has its own permanent layer.At present,support oracle, mysql. so using very simple, i hope you like to join. new :security authentication framework can be configured
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • Next