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.

  • All-in-One Payroll and HR Platform Icon
    All-in-One Payroll and HR Platform

    For small and mid-sized businesses that need a comprehensive payroll and HR solution with personalized support

    We design our technology to make workforce management easier. APS offers core HR, payroll, benefits administration, attendance, recruiting, employee onboarding, and more.
  • Eptura Workplace Software Icon
    Eptura Workplace Software

    From desk booking and visitor management, to space planning and office utilization data, Eptura Workplace helps your entire organization work smarter.

    With the world of work changed forever, it’s essential to manage your workplace and assets together to effectively create a high-performing environment. The Eptura experience combines the power of workplace management software with asset management, enabling you to effectively operate your building and facilitate hybrid work.
  • 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.
    Leader badge
    Downloads: 238 This Week
    Last Update:
    See Project
  • 2
    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: 6 This Week
    Last Update:
    See Project
  • 3
    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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  • 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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  • Control remote support software for remote workers and IT teams Icon
    Control remote support software for remote workers and IT teams

    Raise the bar for remote support and reduce customer downtime.

    ConnectWise ScreenConnect, formerly ConnectWise Control, is a remote support solution for Managed Service Providers (MSP), Value Added Resellers (VAR), internal IT teams, and managed security providers. Fast, reliable, secure, and simple to use, ConnectWise ScreenConnect helps businesses solve their customers' issues faster from any location. The platform features remote support, remote access, remote meeting, customization, and integrations with leading business tools.
  • 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
    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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  • 7
    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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  • 8
    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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  • 9
    ICQMail is ICQ->Email gateway daemon
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    Downloads: 4 This Week
    Last Update:
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  • RMM Software | Remote Monitoring Platform and Tools Icon
    RMM Software | Remote Monitoring Platform and Tools

    Best-in-class automation, scalability, and single-pane IT management.

    Don’t settle when it comes to managing your clients’ IT infrastructure. Exceed their expectations with ConnectWise RMM, our MSP RMM software that provides proactive tools and NOC services—regardless of device environment. With the number of new vulnerabilities rising each year, smart patching procedures have never been more important. We automatically test and deploy patches when they are viable and restrict patches that are harmful. Get better protection for clients while you spend less time managing endpoints and more time growing your business. It’s tough to locate, afford, and retain quality talent. In fact, 81% of IT leaders say it’s hard to find the recruits they need. Add ConnectWise RMM, NOC services and get the expertise and problem resolution you need to become the advisor your clients demand—without adding headcount.
  • 10
    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: 4 This Week
    Last Update:
    See Project
  • 11
    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: 4 This Week
    Last Update:
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  • 12
    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: 1 This Week
    Last Update:
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  • 13
    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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  • 14
    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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  • 15
    climm is a portable, small, yet powerful console based, fully internationalized instant messaging client supporting the current v8 ICQ protocol and XMPP.
    Downloads: 1 This Week
    Last Update:
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  • 16
    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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  • 17
    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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  • 18
    Downloads: 1 This Week
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  • 19
    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: 1 This Week
    Last Update:
    See Project
  • 20
    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
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  • 21
    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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  • 22
    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
    Last Update:
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  • 23
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 1 This Week
    Last Update:
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  • 24
    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
    Last Update:
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  • 25
    Simple messaging client and server (currently in TCL/TK and GTK+).
    Downloads: 1 This Week
    Last Update:
    See Project
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