Open Source Windows ICQ Software

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.

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.

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.

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.

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.

YSM is a simple ICQ client based on the v7/v8 icq protocol version. Free of external libraries requirements, written in the C Language.

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.

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.

jImBot - Java IM Bot, it's a bot framework for instant messager.

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).

A free Win32 instant messaging client. Smaller, Faster, Easier.

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.

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.

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.

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.

This is a Jabber Instant Messenger written in Visual Basic 6. This project is dead.

Dnipro IM - new ICQ client. Writting on Delphi. Very easy, but I want to make The Really Good IM. So, connecting to me, connecting to Dnipro!

ICQMail is ICQ->Email gateway daemon

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

JIB - Java IM Bot, aimed to built a pluggable, customizable, expandable and dynamic bot framework for instant messager. With JIB user can control remote IM Bots over web based interface, configure bots to perform various tasks or custom behavior.

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.

A win32 client for the Jabber Instant Messaging network (www.jabber.org) written using the Euphoria language (www.rapideuphoria.com). Fully skinable using an XML skin format.

OpenICQ is a simple ICQ-Clone written in JAVA programming language. OpenICQ comes up with support for multiple languages and user profiles.

Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.

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.