Browse free open source ICQ software and projects below. Use the toggles on the left to filter open source ICQ software by OS, license, language, programming language, and project status.

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  • 1
    This project provides a basic Java implementation of the OSCAR protocol, used by ICQ and AIM clients. Commonly used features such as messaging, status and server buddy lists are supported, making it easy for developers to use this in their own work.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    icqlib is the most feature complete, open source, library implementation of Mirabilis' ICQ protocol available on the Internet. icqlib currently supports approximately 90% of the ICQ UDP v5 protocol and 80% of the ICQ TCP v2 protocol.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    Laffer Project is an effort to build complete IM environment using the model for developing Open Source Software. Laffer Project comprises of several small projects.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    MSN ProxIRC is an IRC proxy (server) written in C++ which makes use of libMSN and OpenSSL. Whatever IRC server you are proxying, it shows virtual rooms to chat directly with your MSN contacts. Thread-safe and blazing fast.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 5
    PICQ is a very lightweight but extendable OSCAR-protocol (ICQ-client) implementation in PHP.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    ICQ bouncer written in php that can be started on any *NIX VDS or shell or even a shared hosting with background processes allowed.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 10
    ICQ clone born to satisfy my needs. It runs as well on a 486 with win95, on a single diskette, so it's fast and small.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Ayttm is an instant messenger program, supporting various protocols such as MSN, Yahoo, AIM, Jabber, and more. It is the heir of the Everybuddy project, and aims to continue improving the program and addressing its shortcomings.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    This is an Artificial Intelligent response program using Eliza designed to use with the Autoreply 1.0 or higher plugin for LICQ. Let people think they are actually talking to you.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Everybuddy Java (EBJava) is a messaging system written in Java. It consists of an applet and a server, and is used to log in to existing messaging services (AIM, ICQ, etc) through a unified interface. User settings are also stored on the server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    This is a little aplication that I made one year ago. FuICQ able that any user in any equipment connected to the internet (wap celular, any pc...) may access your icq via web. It is a aplication in C and a interface in PHP to be used in websites.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    GAIM-STL provides a simple/secure transport layer over any existing Gaim protocol. STL plugins can be used to encrypt/decrypt text as needed.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    icqnd is a GTK-2 GUI for the popular ICQ program Licq. It's written in C++ and uses GTK/GLib. It features a clean, intuitive interface, the GTK-2 look&feel and all the licq IM backend supports (messages, chat, file transfers, history, search, ...)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Gaim RECO - REplace COdepage of incoming and outgoing messages for Gaim IM client
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Gaim for Qtopia is an official port of the multi-protocol instant messenger client Gaim for the Zaurus and other PDAs running Qtopia. It supports AIM, ICQ, MSN, Yahoo!, IRC, Jabber, Gadu-Gadu, and Napster.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    ICQGATE is a 'gate' providing access to your IRC network for ICQ users. It can use multiple uins simultaneously, so there is nearly no maxusers limit. Currently can can be used only in hybrid-based networks
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Free icq bot for Windows and Unix. Бесплатный icq бот для Windows и UNIX.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Instant Messenger gui made with nice Fishs. Written in python. (now only Gtk, may be later we use Qt and others). Main objetives are: be nice, fast, usable, portable, and sopport different free messengers systems/backends
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Internet Relay Jabber (or IRJ) is a Jabber client for IRC. It's useful if you like IRC, but your friends use another IM service. It is written in Perl and uses Net::Jabber and Net::IRC. (This project is no longer under active development)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    J.Jab. Lite is a lightweight Jabber client written as a Java 1.4.1 applet. Allows users to chat with others on Jabber, AIM, ICQ, MSN, and Yahoo im systems. Has a slimmed down version written in java 1.1.7 that allows simple group chat and moderator access
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    JIM - Java Instant Messenger. 100% Java
    Downloads: 0 This Week
    Last Update:
    See Project
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