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.

  • Red Hat Enterprise Linux on Microsoft Azure Icon
    Red Hat Enterprise Linux on Microsoft Azure

    Deploy Red Hat Enterprise Linux on Microsoft Azure for a secure, reliable, and scalable cloud environment, fully integrated with Microsoft services.

    Red Hat Enterprise Linux (RHEL) on Microsoft Azure provides a secure, reliable, and flexible foundation for your cloud infrastructure. Red Hat Enterprise Linux on Microsoft Azure is ideal for enterprises seeking to enhance their cloud environment with seamless integration, consistent performance, and comprehensive support.
  • Cyber Risk Assessment and Management Platform Icon
    Cyber Risk Assessment and Management Platform

    ConnectWise Identify is a powerful cybersecurity risk assessment platform offering strategic cybersecurity assessments and recommendations.

    When it comes to cybersecurity, what your clients don’t know can really hurt them. And believe it or not, keep them safe starts with asking questions. With ConnectWise Identify Assessment, get access to risk assessment backed by the NIST Cybersecurity Framework to uncover risks across your client’s entire business, not just their networks. With a clearly defined, easy-to-read risk report in hand, you can start having meaningful security conversations that can get you on the path of keeping your clients protected from every angle. Choose from two assessment levels to cover every client’s need, from the Essentials to cover the basics to our Comprehensive Assessment to dive deeper to uncover additional risks. Our intuitive heat map shows you your client’s overall risk level and priority to address risks based on probability and financial impact. Each report includes remediation recommendations to help you create a revenue-generating action plan.
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    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: 251 This Week
    Last Update:
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  • 2
    Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.
    Downloads: 7 This Week
    Last Update:
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  • 3
    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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  • 4
    Miranda NG

    Miranda NG

    Miranda NG: Next Generation of Miranda IM

    Miranda NG is a successor of a popular multi-protocol instant messaging client for Windows, Miranda IM. Very light on system resources and extremely fast. Supports Em-LAN Facebook, Gadu-Gadu, ICQ / MRA, IRC Internet Relay Chat, Jabber XMPP, MinecraftDynmap, Omegle, Sametime, SkypeWeb, Steam, Tox, Twitter, and VKontakte. Linux is not a natively supported operating system, but Miranda is known to run on Linux under Wine. PluginUpdater is responsible for keeping your Miranda up-to-date. It checks for updates for all installed plugins and other components like icon sets and langpack regularly (depending on its settings) and performs updating automatically.
    Downloads: 1 This Week
    Last Update:
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  • Vivantio IT Service Management Icon
    Vivantio IT Service Management

    Your service operation isn’t one-size-fits all, so your IT service management solution shouldn’t be either

    The Vivantio Platform allows you to focus on the IT service management tools that make sense for your organization’s unique service model: from incident, problem and change requests, to service requests, client knowledge and asset management
  • 5
    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: 8 This Week
    Last Update:
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  • 6
    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: 2 This Week
    Last Update:
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  • 7
    A pidgin plugin that allows user to assign global hotkeys (e.g. Ctrl+Alt+g) for togglling buddy list and reading queued message. When "Toggle List" hotkey is enabled, it makes the buddy list hidden from your taskbar and task switcher (similar to ICQ).
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    Downloads: 4 This Week
    Last Update:
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  • 8
    YSM is a simple ICQ client based on the v7/v8 icq protocol version. Free of external libraries requirements, written in the C Language.
    Downloads: 7 This Week
    Last Update:
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  • 9
    ICQMail is ICQ->Email gateway daemon
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    Downloads: 6 This Week
    Last Update:
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  • Tigerpaw One | Business Automation Software for SMBs Icon
    Tigerpaw One | Business Automation Software for SMBs

    Fed up with not having the time, money and resources to grow your business?

    The only software you need to increase cash flow, optimize resource utilization, and take control of your assets and inventory.
  • 10
    Jimm is an ICQ clone for mobile devices, such as celluluar phones. It is written in Java 2 Micro Edition (MIDP) and uses protocol version 8. Jimm is not affiliated with or endorsed by ICQ, Inc.
    Downloads: 1 This Week
    Last Update:
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  • 11
    Jarl is a Perl/Tk Client. It strives to provide full functionality with every aspect of the Jabber IM system. It currently supoprts messaging, chat, groupchat, ICQ, AIM, and IRC support.
    Downloads: 5 This Week
    Last Update:
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  • 12
    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: 1 This Week
    Last Update:
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  • 13
    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: 1 This Week
    Last Update:
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  • 14
    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: 2 This Week
    Last Update:
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  • 15
    Plugin for Pidgin messenger that saves your opened conversations at shutdown and restores its at startup.
    Downloads: 2 This Week
    Last Update:
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  • 16
    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: 1 This Week
    Last Update:
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  • 17
    Downloads: 1 This Week
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  • 18
    GnomeICU (previously GtkICQ) is an Internet-based communications program which makes use of the ICQ protocol and GNOME. DISCONTINUED: We recommend you use Empathy
    Downloads: 1 This Week
    Last Update:
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  • 19
    There are many people, who search server that support several protos and can work as corporate internet connection-independent ICQ gate.
    Downloads: 1 This Week
    Last Update:
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  • 20
    This is an unofficial native port of Pidgin to Mac OS X. It uses native GTK+ (www.gtk-osx.org) which provides better integration and does not require X11. It also comes with more plugins out of the box, including OTR.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Proteus is a multi service instant messaging application for Mac OSX. At the core of Proteus is this Service Controller! This controller provides a common interface for any number of applications to plug into. Each application that knows how to commun
    Downloads: 1 This Week
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  • 22
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
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  • 23
    SMSer is a command-line application that lets you send SMS messages to a list of phone numbers located in a file. It places all the messages in the CenterICQ's queue and when CenterICQ is invoked all the messages are sent to the recipients.
    Downloads: 1 This Week
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  • 24
    Simple messaging client and server (currently in TCL/TK and GTK+).
    Downloads: 1 This Week
    Last Update:
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  • 25
    A miniature console based AIM client written in pure Java. It implements the TOC protocol and provides a solid framework for understanding and writing your own IM clients or bots.
    Downloads: 1 This Week
    Last Update:
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