Chat Software for Windows

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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.

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  • 1
    BeeBEEP (Free Office Messenger)

    BeeBEEP (Free Office Messenger)

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

    BeeBEEP is a free, open-source, peer-to-peer (P2P) desktop LAN chat and office messenger built with end-to-end encryption (Rijndael Algorithm, AES). Designed for local area networks, this free cross-platform messaging app enables instant messaging, group chat, and secure file sharing across your office, home, or intranet—completely serverless and offline. Whether you need a private LAN chat application for your team or a secure office communicator over VPN, BeeBEEP operates without central servers or cloud dependencies. It is a free, serverless chat solution for Windows, Linux, and macOS where privacy, data security, and local network communication are essential.
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    Downloads: 3,104 This Week
    Last Update:
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  • 2
    Asterisk GUI client, VICIdial

    Asterisk GUI client, VICIdial

    VICIdial Contact Center Suite

    This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers.
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    Downloads: 100 This Week
    Last Update:
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  • 3
    FMA is a SMS Manager, Mobile Phone Monitor, Remote Control Agent, Phonebook Manager, Organizer, Fun and much more; whatever you want it to be, it is whatever a mobile phone should have :-) (Currently based on Sony Ericsson features set).
    Downloads: 60 This Week
    Last Update:
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  • 4
    Coccinella is a free and open-source cross-platform communication tool with a built-in whiteboard for improved collaboration with other people.
    Downloads: 7 This Week
    Last Update:
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    Help Center Live is a Live Support tool written in PHP, using a MySql database, that allows visitors on a webste to hold a conversation in real time with a representative of the website. *** VISIT HTTP://WWW.HELPCENTERLIVE.COM FOR DOWNLOADS ***
    Downloads: 8 This Week
    Last Update:
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  • 6
    RetroMessenger is an Instant Messenger with a minimal GUI interface to the libretroshare library, in order to have a standalone Instant Chat Messenger. It will be developed using wxwidgets (additional: XUL, Qt) GUI toolkit. http://retromessenger.sf.net
    Downloads: 7 This Week
    Last Update:
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  • 7
    Visual IRC is a feature-rich, fully customizable IRC client for Windows. Multiple server support, a powerful scripting language, a clean interface, and DCC whiteboard are just a few of the features that define this unique program.
    Downloads: 6 This Week
    Last Update:
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  • 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: 1 This Week
    Last Update:
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  • 9
    Remote Desktop Activex
    Remote Desktop Activex: Remote desktop support software - Remote PC access - remote desktop connection software, Just Another Remote Desktop Control using Winsock like VNC. Support up to 100 Clients
    Downloads: 1 This Week
    Last Update:
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  • 10
    Mibew Messenger 3
    Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.
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    Downloads: 2 This Week
    Last Update:
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  • 11
    Null Groupware is a self-hosting web based groupware system written in c. It's portable, modular, and has a complete api for third party developers' extensions. Features include event scheduling, call tracking, contact management, web-based email, a w
    Downloads: 2 This Week
    Last Update:
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  • 12
    Single Interface CRM and Software Versioning support system. Manage bug tickets, chats, email, and web site hosting business tasks such as dns, billing, and customer site updates.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Apache RocketMQ

    Apache RocketMQ

    Distributed messaging and streaming platform with low latency

    Apache RocketMQ is a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability. Messaging patterns including publish/subscribe, request/reply and streaming. Financial grade transactional message. Built-in fault tolerance and high availability configuration options base on DLedger. A variety of cross language clients, such as Java, C/C++, Python, Go. Pluggable transport protocols, such as TCP, SSL, AIO. Built-in message tracing capability, also support opentracing. Versatile big-data and streaming ecosytem integration. Message retroactivity by time or offset. Reliable FIFO and strict ordered messaging in the same queue. Efficient pull and push consumption model. Million-level message accumulation capacity in a single queue. Multiple messaging protocols like JMS and OpenMessaging. Flexible distributed scale-out deployment architecture. Lightning-fast batch message exchange system.
    Downloads: 0 This Week
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  • 14
    Biwoo is an open-source, cross-platform enterprise communication software. Biwoo support enterprise multi-level departments, project group organization structure. Support P2P AV chat, file send, image send, group chat, offline messages, chat logs.
    Downloads: 0 This Week
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  • 15
    CalLite CRM

    CalLite CRM

    Software per Call Center

    CalLite è il software per Call Center più versatile e veloce sul mercato. Ti permette di azzerare le perdite di tempo degli utenti (operatori, agenti, supervisori, coordinatori, ecc. ecc.) per massimizzare i guadagni. Il software dispone delle funzionalità: PowerDialer, ProgressiveDialer, PredictiveDialer ed AutoDialer. Ovunque siano (da casa o in ufficio), i tuoi operatori potranno lavorare con una semplice connessione internet. Tu potrai, da ogni dispositivo fisso o mobile, amministrare e controllare l’attività del tuo Call Center.
    Downloads: 0 This Week
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  • 16
    A secure collaborative framework that is being used by other projects such as CFAgent (online customer service), CFWeb (pure HTTP communication for CFAgent) and much more in addition to serving as a standalone all-in-one collaboration platform by itself.
    Downloads: 0 This Week
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  • 17
    ClanOffice is a planning tool for gaming clans, using a mysql server to store and share data. It includes a warplanner and calendar and uses simple built-in irc and mail clients to communicate to fellow gamers. A php websuite is allso available.
    Downloads: 0 This Week
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  • 18
    CoPaint allows graphical whiteboard teleconferences over IRC
    Downloads: 0 This Week
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  • 19
    ConneX is a pure p2p collaboration platform based on JXTA technologie. its provides Real-Time collaboration tools in form of Plug-ins (instant messaging, file sharing, chat, whiteboard, slide show)100% Java.
    Downloads: 0 This Week
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  • 20
    Convey is a real-time, online, multi-user collaboration tool which augments text, graphics, and symbols. Examples of graphics include shapes, mathematical expressions, diagrams, flow charts, and pictures.
    Downloads: 0 This Week
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  • 21
    The BlackBox - austrians oldest, still existing online community is about to develope a new collaboration-ware.
    Downloads: 0 This Week
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  • 22
    MOVED: https://github.com/dcbriccetti/dbschools
    Downloads: 0 This Week
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  • 23
    DevWare is an Developer Groupware,with Calender, E-Mail, Chat, Todo's, integrated CVS / SVN, own Version Control, Documentation System, Redactionell System. It's written in Java, the Server runs on Jboss, Rich Client is Eclipse.
    Downloads: 0 This Week
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  • 24
    ExtremeTalk(XT)是一个用于企业或者组织内部进行在线通讯的,基于XMPP(Jabber)协议的即时通讯系统。ExtremeTalk(XT) is an Instant Messaging(IM) collaboration platform based on XMPP(Jabber) for enterprises and organizations
    Downloads: 0 This Week
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  • 25
    Resources for creating personal or family websites including modules for open source content management systems (CMS) such as phpWebsite.
    Downloads: 0 This Week
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