Miranda IM is an open source multiprotocol instant messaging application, designed for Microsoft Windows. Miranda IM provides a basic client framework, GUI and an advanced plugin architecture. Support for various IM protocols and additional features is implemented through optional plugins, some of which come bundled with Miranda IM by default and the rest (over 500) are available on the official addons site. The protocol plugins included with Miranda IM are AIM, Gadu-Gadu, ICQ, IRC, .NET Messenger Service (a.k.a. MSN), XMPP (& Google Talk) and Yahoo! Messenger. Portable apps version available.

Operating systems: Windows, Windows 9x