Browse free open source Chat software and projects for 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
    RetroShare

    RetroShare

    [WARNING] Project has moved to http://github.com/Retroshare/Retroshare

    [IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 2
    WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 3
    X-Chat Aqua is X-Chat with an Aqua interface for MacOS X. X-Chat Aqua uses the irc engine from X-Chat, and is designed to look and feel like the GTK+ front end.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    JMSN is a pure Java Microsoft MSN Messenger clone, including Instant messaging, File Send/Receive, msnlib (for developers), and additional chat log etc. JMSN has many interesting features that MSN doesn't have.
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 5
    Gameranger Client connects to the macintosh online gaming service, Gameranger. Allows you to chat with other users and find games.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 6
    Flash XML Socket Server using Apache MINA and JNDI for data connections.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    egalite
    Egalite supports direct 1-1 chat with SSL over IPv4 or IPv6, as well as server based chat with IRC or XMPP (Jabber).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    Small and portable ICQ library and client written in pure Python.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    A cross-platform Java alternative Google Talk.
    Downloads: 3 This Week
    Last Update:
    See Project
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  • 10
    CellMate Bot currently allows google queries and aim functions through OSCAR. Made to be used form your cellphone's AIM client, CellMate Bot will be updated to include email, news and map directions in the future. For now, you can use Google SMS.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Eggdrop
    Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    LimeChat is an IRC client written on RubyCocoa.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    DCWatch is a DCWL (DCWatch Library) based program. It's working on the new DirectConnect (ADC) network. You can create hubs and bots with extra features. It supports TIGR, SHA1 and UCMD extensions of ADC protocol, and Lua scripts.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Free Instant Mesagging and Chat client / server
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    The end goal of the FreeMess Project is to produce a cryptographically secure, pseudonymous, cross-platform peer-to-peer Instant Messenger service, piggybacking on FreeNet (http://freenet.sourceforge.net) as a distributed filesystem to hold user data.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Open Direct Connect is a multi-protocol file sharing program that supports the protocol used by Direct Connect ( http://www.neo-modus.com/ ).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Prolix is a "binary bot" chat interface and bot for various battle.net(tm) like services such as bnetd, fsgs, and possibly battle.net itself. Prolix offers a modular design allowing one to create and use custom controls, bots and displays.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18

    TalkND

    Local chat based on MSSqlServer

    Simple yet powerful chat designed for communication in LAN . Requires SQL Server and .Net 4.0.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    Jabber client libraries for light java devices such as mobile phones, it brings instant messaging capabilities to every java phone (with support to MIDP), but may be used for other applications! It uses a very tiny XML parser crafted for this project.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    pr2.code
    utilities and libraries for gamedev - pure c# rar unarchiver, mp3 decoder. c++ flac module repacker. other misc. things.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    QChat is a simple crossplatform LAN chat. It is written using Qt4 so you can compile it on any platform supported by Qt. NOTE: you need Qt 4.3 to compile and run it.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    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
  • 23
    This ain't your daddy's crypto! We provide a set of C libs and utilities to perform cypherpunk style crypto functions, using your existing OpenPGP keys. Ring signatures; credentials; mental poker; timelines; zero knowledge proofs. Cool stuff!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Opensource IRC flash client, written in Flex-SDK which uses direct client-server connection without any server side interpreter.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Scripts and hub mods written to enhance OpenDCHub. The Hub-Security script filters unregistered users by country, and adds op commands and security features. Statistical and fun scripts are also available. Future development will shift towards ODCH mods
    Downloads: 0 This Week
    Last Update:
    See Project
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