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
    Miranda IM

    Miranda IM

    A smaller, faster, and easier IM client

    Miranda IM is an open source, multi-protocol instant messaging client designed to be very light on system resources, extremely fast and customizable. A powerful plugin-based architecture make Miranda IM one of the most flexible clients on the planet.
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    Downloads: 258 This Week
    Last Update:
    See Project
  • 2
    A free Win32 instant messaging client. Smaller, Faster, Easier.
    Downloads: 42 This Week
    Last Update:
    See Project
  • 3
    Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.
    Downloads: 8 This Week
    Last Update:
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  • 4
    Adium

    Adium

    A multi-protocol instant messaging app for Mac OS X

    Adium is an Open Source, multi-protocol instant messaging application for Mac OS X. Adium supports AIM, ICQ, Jabber, MSN, Yahoo!, Google Talk, Bonjour, Gadu-Gadu, Novell Groupwise, SIP/SIMPLE (Text), and Lotus Sametime. Additionally, it supports all of these applications at once so, even if you have multiple IM accounts, you don't have to log into each account separately.
    Downloads: 5 This Week
    Last Update:
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  • 5
    Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®, ICQ®, MSN® Messenger, Jabber, limited IRC, Yahoo!®, and Apple Bonjour communications.
    Downloads: 4 This Week
    Last Update:
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  • 6
    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: 1 This Week
    Last Update:
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  • 7
    A CrossPlattform Instant Messenger written in Java, brings its own small Server and allows people to communicate in a LAN with static IP-Adresses. Current release has support for ICQ and AIM, more will follow. Want to contribute? Mailto project admin.
    Downloads: 1 This Week
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    See Project
  • 8
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    Babel IM is a skinnable instant messenger, with plugins for ICQ, AIM, MSN, Yahoo & RSA crypto. All functionality is provided through the plugin interface, so Babel is highly customizeable.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    The BeOS Instant Messaging Kit project aims to create a BeOS-centric, generic instant messaging servuice for workstations. The system will follow the BeOS kits/servers model, and different IM protocols will be supported through add-ons to the im_server,
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12

    Black Panda Instant Messenger

    Instant Messenger provides user with an easy way to chat with friends.

    Instant Messenger provides user with an easy way to chat with friends from many popular networks in one integrated program. Supported IM networks are ICQ, AOL, Google Talk, Facebook, MSN, IRC, Skype, Gagu-gadu a many more. It is based on great Pidgin Instant Messenger project.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    The goal of CryptoJIM project is to create a cross platform instant messenger with support for a central encrypted message archive, transparent message encryption and several IM Protocols. At first priority it will support the ICQ Protocol.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    A native instant messenger for Motorola EZX phones with support for both ICQ and JABBER protocols.
    Downloads: 0 This Week
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    See Project
  • 15
    An open-sourced all-in-one messenging client. The client includes AOL OSCAR, IRC, MSN Messenger, Yahoo! Messenger, and ICQ (OSCAR). Written in Java for cross-platform support.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    This is a Java-based project to integrate IM services (MSN, Yahoo, AOL, ICQ, Jabber) into a server-based proxy service, providing always-on presence and offline message queing. Any Jabber-based client can receive messages from the service.
    Downloads: 0 This Week
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    See Project
  • 17
    IMGIANT is a GTK based instant messenger application. It will support 8 different protocols, (aim, yahoo, icq, msn, napster, jabber, gadu, groupwise) and contain all features that an Instant messenger should contain, including more it shouldnt!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    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
  • 19
    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: 0 This Week
    Last Update:
    See Project
  • 20
    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
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    See Project
  • 21
    JIM - Java Instant Messenger. 100% Java
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Kraken XMPP IM Gateway
    Kraken is a continuation of the Openfire IM Gateway plugin, but in a way that works for any XMPP server. It provides a way for XMPP users to log into, and communicate through, their legacy IM accounts such as AIM, ICQ, MSN, Yahoo, and friends.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    My-WIM is a new instant messenger service, which provides chat, white board, voice and video chat, games, file share, file transfer and many more features. Active development started!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    This software project hopes to develop a instant messenger (IM) based on the Microsoft .NET Framework using C#. It will include a plugin system that allows for multiple types of IM protocols. This also includes a purpose to have a clean and functional UI
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Send XMPP (Gtalk/Google Talk also supported) messages (thanks to Jabber) within a single line of PL/SQL code, get buddies list and status in relational tables (or xml) on Oracle 11g.
    Downloads: 0 This Week
    Last Update:
    See Project
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