Browse free open source Chat software and projects for Windows and Mac 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
    Echomine Muse provides an easy-to-use Java API that gives you quick and easy access to network collaboration services. Specifically, it allows you to communicate with Jabber/XMPP servers to perform instant messaging and presence management.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    A Java chat server/applet that translates languages. Two people who speak different languages can enter the chatroom and their messages will be automatically translated into each other's native tongue.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Echomine develops open-source Java software that works with innovative and enterprise technologies. Projects include Echomine Muse and Feridian that provides a simple and easy-to-use API to access Jabber and XMPP networks.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Unified IM Library Supports AIM, ICQ, MSN, Yahoo IM Protocols. More protocols(Jabber) may be added later on. Primary audience is server side developers that need to have long running processes. Performance, scalability, good message throughput are the
    Downloads: 0 This Week
    Last Update:
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  • 5
    IrcAppender

    IrcAppender

    IrcAppender forwards important log4j messages to an IRC channel

    IrcAppender is an appender for the Apache log4j system which forwards important logging event to an IRC channel. Output is controlled by the log4j configuration.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    The goal of this project is to create a new peer-to-peer system that is capable of supporting instant messaging, encryption, and secure sharing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    This project is started to allow the up and coming Java Programmers from the Pittsburgh Java Users Group to learn Java Programming with a Full Project.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    A scripting language for an IRCBot (eggdrop like) written in C++.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Phosphor is a peer-to-peer file sharing program. XML network protocol, with source in Java and Swing. Uses thread pools extensively and is designed to scale very well. Chat capabilities. This is Napster done right!
    Downloads: 0 This Week
    Last Update:
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  • 10
    ThinLisp is a practical dialect of lisp for real world applications. You develop in Common Lisp, you deploy in C. ThinLisp programs are as fast as C, by design. Used for a decade in million line systems.
    Downloads: 0 This Week
    Last Update:
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  • 11
    lilyCore is a database for LambdaMoo. It is used to implement a direct and group communication enviroment very different from the traditional Moo database. Daisy is a related project at SourceForge ( http://daisy.sf.net/ ).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    NetMessenger is an Instant Messaging web front-end to Jabber. It can be run over https ensuring clients secure communication without installing software. NetMessenger uses, Struts and Muse.
    Downloads: 0 This Week
    Last Update:
    See Project
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