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.

  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • Repair-CRM Icon
    Repair-CRM

    For small companies that repair and maintenance customer machines

    All-In-One Solution with an Online Booking portal for automating scheduling & dispatching to ditch paperwork and improve the productivity of your technicians!
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  • 1
    Mumble

    Mumble

    Low-latency, high quality voice chat for gamers

    Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. It includes game linking, so voice from other players comes from the direction of their characters, and has echo cancellation so the sound from your loudspeakers won't be audible to other players.
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    Downloads: 90 This Week
    Last Update:
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  • 2
    PabloDraw
    A Windows-based ansi/ascii editor with unlimited multi-user capabilities.
    Downloads: 8 This Week
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  • 3
    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: 5 This Week
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  • 4
    XNap is a Java plugin-based peer-to-peer (P2P) framework and client including an OpenNap plugin with multiple server support, as well as Gnutella, giFT (OpenFT), IRC, ICQ and an OverNet plugin. XNap provides resuming, chat, hotlist and a media library.
    Downloads: 6 This Week
    Last Update:
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  • Easy-to-use Business Software for the Waste Management Software Industry Icon
    Easy-to-use Business Software for the Waste Management Software Industry

    Increase efficiency, expedite accounts receivables, optimize routes, acquire new customers, & more!

    DOP Software’s mission is to streamline waste and recycling business’ processes by providing them with dynamic, comprehensive software and services that increase productivity and quality of performance.
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  • 5
    Speak Freely is a Cross Platform Internet telephony (Voice Chat) application which provides high quality voice grade audio with GSM and CELP compression and encryption with DES, Blowfish, and IDEA ciphers. Refering to recent news: The maintainers will never add any unwanted extra software in the zip download file but we can only speak for our selves.
    Downloads: 5 This Week
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  • 6
    A fully perl written sofware for windows (also stand alone binary code included, so it does not require perl installation to use it) to receive short messages (SMS) sent by mobilephone.
    Downloads: 2 This Week
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  • 7
    TeamBlibbityBlabbity is an attempt to document and provide an example implemention of the proprietary TeamSpeak 2 protocol.
    Downloads: 2 This Week
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  • 8
    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: 2 This Week
    Last Update:
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  • 9
    JavaComm

    JavaComm

    Desktop communication tool: chat, telephony, multimedia

    JavaComm is a client–server communication platform offering chat, telephony, screen sharing, conferencing, a media player, IPTV, and peer-to-peer file sharing. All server-based communication runs over HTTPS (SSL/TLS), while file transfers are handled directly between users without passing through the server. The JavaComm Server runs on any Jakarta EE Web Profile 10 platform with the required extensions. Tomcat 10.1.44 is used as the reference server for development and deployment. A SQL database stores global system data, with MariaDB 10.5.29 serving as the reference database via a standard JDBC environment. User documentation, written from the end-user perspective, and detailed administrator guides are available on the JavaComm homepage. Visit the website for installation instructions, configuration help, and full feature descriptions.
    Downloads: 2 This Week
    Last Update:
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  • Zendesk: The Complete Customer Service Solution Icon
    Zendesk: The Complete Customer Service Solution

    Discover AI-powered, award-winning customer service software trusted by 200k customers

    Equip your agents with powerful AI tools and workflows that boost efficiency and elevate customer experiences across every channel.
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  • 10
    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: 1 This Week
    Last Update:
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  • 11

    Networking Tools

    This Program Contains Many Useful Network Tools

    This programs contains the following programs: ------------------------------------------------------------------ 1-Wi-Fi Connector : Connects To Available Wi-Fi Network. 2-Router Password Cracker : To Crack Router's Gateway Password. 3-IP Trace : Trace The IP Address For Any Website. 4-IP Tracker : Gets Your WAN IP Address. 5-Lan Messenger : Chat Between Computers On Same LAN Network. 6-Email Sender : For Sending E-mails Using SMTP Server. 7-Email Viewer : For Receiving E-mails Using POP3 Server. 8-YouTube Downloader : For Downloading YouTube Videos. 9-File Downloader : For Downloading Files.
    Downloads: 1 This Week
    Last Update:
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  • 12
    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: 1 This Week
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  • 13
    This is a video/audio/chat conferencing application that enables two users located at remote computers on a LAN, WAN or the internet to communicate with each others.
    Downloads: 1 This Week
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  • 14
    An extensible (by plugin) chatbot project
    Downloads: 0 This Week
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  • 15
    ASCEND is a collection of libraries to build P2P-based 3D networked virtual environments such as Massively Multiplayer Online Games (MMOGs). It supports real-time 3D streaming, consistency control, and persistent storage in a distributed P2P environment.
    Downloads: 0 This Week
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  • 16
    Anastacia Messenger is a multi protocol instant messenger, currently supporting ICQ, MSN and Yahoo. Written in Java, it offers a solution for people working with different operating systems, giving them the chance to use the same messenger/gui anywhere.
    Downloads: 0 This Week
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  • 17
    AniClient is a Hotline [(C) Hotline Communications, http://www.hotspringsinc.com/] clone for Microsoft (C) Windows. It was developed as part of the AniCONS anime icon list (hotline://anicons.net). Hotline combines IRC-like chat, file transfer & news
    Downloads: 0 This Week
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  • 18
    Anime-Shqip.TV

    Anime-Shqip.TV

    Anime-Shqip.TV: Referencimi dhe sigurimi gjat shfletimit online.

    You have full premission of secured data browsing within researches between all anime websites.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Anymix Media Server is a free (as in "free speech" and also as in "free beer") Flash Media Server (FMS) or rtmp stremming server. Running in the MS Windows environment. How to install: From the zip : just unzip all the files into a directory you want then launch it. Its a portable and little FMS. Anymix Media Server project site: http://sourceforge.net/projects/anymixrtmp/ Like us on facebook: http://www.facebook.com/Anymixmedia follow us on twitter: https://twitter.com/Anymixmedia DONATION Please Donate us $20 on paypal for big help its poor developers. Your donated found will be given directly its developers. To Donation Please click hare: https://www.paypal.com/cgi-bin/webscr?business=anymix.services@yahoo.in&cmd=_xclick&item_name=Donate%20For%20Anymix%20Media%20Server&amount=20&cc=USD
    Downloads: 0 This Week
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  • 20
    ArCoLIVE provides a set of open source component-based toolkit for multimedia applications such as chat room, Peer-to-Peer (P2P) conversation, virtual white-board, audio/video conferencing, control connection containers, screen capture and file sharing.
    Downloads: 0 This Week
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  • 21
    AutoHome(Automatic Home Management System) to schedule Television,DVD,and any Infrared based devices(Roboraptor and RoboSapien)to work automatically.Can Send(transmit)/Recieve Remote Control Signals, launch EXE files in Computers/PC .It uses USBUIRT.
    Downloads: 0 This Week
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  • 22
    BetaVerse is a Real-Time 3D On-Line Community. It uses the CrystalSpace 3D Engine as well as the VOS network library
    Downloads: 0 This Week
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  • 23
    Various coding projects by the members of the BlaatSchaap Website. The latest project is a multi-scrobbler that will scrobble to both last.fm en libre.fm. Another project is a modular IRC bot. both protocol and other functionality are loadable plugina.
    Downloads: 0 This Week
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  • 24
    (A WebWorm Crashed my website!! :( )BlueWalk is a small software for Symbian, it is the first automatic system for personal communication, that allows to communicate with the people around you. It will give you a new way of using phone.
    Downloads: 0 This Week
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  • 25
    BlueWar is a 3D Multiplayer Real-Time Strategy Game (RTS) that features a futuristic combat on the surfaces of various planets in the universe.
    Downloads: 0 This Week
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