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
    Rocket.Chat Community Version

    Rocket.Chat Community Version

    The Leading Open Source Communication Hub | Community Version

    Own your Communication with the all-in-one platform made for customer support and team collaboration. Lead with the open-source power: data security and flexibility at your hands. *NOTE: This is our Community Version product page. To know more about all of the possibilities within Rocket.Chat, check our Enterprise product page https://sourceforge.net/software/product/Rocket.Chat/ Rocket.Chat is a reliable communication platform for high-private team chatting and collaboration. Highly scalable, our solution increases business efficiency by bringing messages, video calls, file sharing and all team communication into one place. +10M users trust Rocket.Chat to obtain: - The best cost-benefit enterprise communication platform - A remote-first platform for team collaboration - Data-privacy ensured (GDPR, HIPAA, CCPA, you name it) - Seamless adaptation for all kinds of
    Downloads: 7 This Week
    Last Update:
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  • 2
    A Windows Installer Database To XML Bi-Directional Converter. The command line tool msi2xml converts Windows Installer Databases (.msi) to text based XML files. The complementary tool xml2msi reconstructs the .msi from the XML file.
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    Downloads: 25 This Week
    Last Update:
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  • 3
    voxshare_gui

    voxshare_gui

    *VoxShare* is a simple Python-based push-to-talk multicast voice chat

    VoxShare is a simple Python-based push-to-talk multicast voice chat application with a sleek modern GUI built using CustomTkinter. Provided as python source code or compiled standalone windows application (no need to install anything).
    Downloads: 21 This Week
    Last Update:
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  • 4
    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: 8 This Week
    Last Update:
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  • 5
    This is an IRC dice bot. This bot supports crypto-seeded random rolls of multi-sided dice. This bot logs onto an IRC server and awaits input by players. DiceBot includes support for roll multipliers (5d20) and roll modifiers (1d20 + 1d1547 - 5 * 2 / 4).
    Downloads: 1 This Week
    Last Update:
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  • 6
    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: 1 This Week
    Last Update:
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  • 7
    Gangio Desktop

    Gangio Desktop

    Gangio is a full-featured chat and communication platform.

    Gangio is a full-featured chat and communication platform. It provides real-time messaging, server-based communities, direct messaging, voice/video communication, and social features in a modern, responsive interface.
    Downloads: 1 This Week
    Last Update:
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  • 8

    bChatter

    bChatter is a simple chat client and server written in Java.

    Downloads: 1 This Week
    Last Update:
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  • 9
    Online game for developers. Program your team of 4 ants (in LISP) that can reproduce and gain experience and fight against another players in different game modes(CTF, TDM, DM)!
    Downloads: 0 This Week
    Last Update:
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  • 10
    Blurb is a portable, fully customisable, PHP-powered Web 2.0 quote management system.
    Downloads: 0 This Week
    Last Update:
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  • 11
    CLAIM is an AIM chat client library for Common Lisp (using AIM's TOC protocol).
    Downloads: 0 This Week
    Last Update:
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  • 12
    Chatty

    Chatty

    A Twitch Chat Client

    Chatty is a Twitch Chat Client for everyone who wants to try something different than the Webchat but doesn't want to miss out on many of the Twitch specific features.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Make AJAX/PHP avatar worlds on websites. Build visualized, real multi-user communities, fora and chat rooms. See your buddies wander around. From card games to virtual RPG worlds, DutchPIPE makes it possible. The future: interconnected DutchPIPE sites.
    Downloads: 0 This Week
    Last Update:
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  • 14
    FasFollow

    FasFollow

    FasFollow is a social media website, and use to connect people.

    FasFollow is a social media website which allows users to connect with friends, relatives or people they don't know, online. It allows users to share pictures, music, videos, and articles, as well as their own thoughts and opinions.
    Downloads: 0 This Week
    Last Update:
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  • 15
    Hopy is a AIM instant messenger written in Java using SWT/JFace. Runs standalone and as an Eclipse plugin. Hopy uses TOC to connect to the AIM network.
    Downloads: 0 This Week
    Last Update:
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  • 16
    IM Café is a complete solution for deploying a private (LAN/WAN) Instant Messaging System. It is made of a Server (IMCafeServer.jar) and a Client (IMCafeClient.jar) application and it was completely written in Java.
    Downloads: 0 This Week
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  • 17
    Chat over IRC or develop for IRC.
    Downloads: 0 This Week
    Last Update:
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  • 18
    J-Alice is a C++ implementation of an Alicebot clone. It can chat on console, irc and function as a mini-http server. Currently it runs on Linux, BeOS, Windows and Solaris with equal functionality.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Jiaho is a free and open source XMPP/Jabber chat client. It's a web-based application 100% AJAX, built with GoogleWebToolkit and Smack Library.
    Downloads: 0 This Week
    Last Update:
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  • 20
    The JLCP aims to write a number of components to produce a free Java portal site based on an internal forum system to provide Java newcomers and veterans alike with everything they need related to java.
    Downloads: 0 This Week
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  • 21
    Platform-independent client for widely-used in Russia and other CIS countries Mail.ru Agent instant messaging system (http://agent.mail.ru).
    Downloads: 0 This Week
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  • 22
    MavenIM is a plugin for maven that provides a mechanism for sending instant messaging notifications. It will provide support for XMPP/XMPP secure (Jabber), AIM (TOC protocol), MSN, and YIM clients.
    Downloads: 0 This Week
    Last Update:
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  • 23
    MkChat
    Simple shoutbox. Used programming language: VB.net Requirements: .NET Framework 4.5.2 or above
    Downloads: 0 This Week
    Last Update:
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  • 24
    Small and portable ICQ library and client written in pure Python.
    Downloads: 0 This Week
    Last Update:
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  • 25
    NetChatLink
    MOVED TO GITHUB: https://github.com/pR0Ps/NetChatLink NetChatLink is a small application that links chats across multiple DC hubs and IRC channels. It includes support for the ADC protocol, IRC channel keys, chat filtering, per-user settings, op commands, and more. It is a fork of MyIrcDcLinks by Burek.
    Downloads: 0 This Week
    Last Update:
    See Project
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