Pidgin

Miranda IM is the smaller, faster, easier instant messenger with support for multiple protocols. Designed from the ground-up to be resource efficient while still providing a rich feature set, Miranda …

Trillian is a proprietary multiprotocol instant messaging application for Windows, Mac OS X, Android, iOS, BlackBerry OS, and the Web, created by Cerulean Studios. It can connect to multiple IM …

HexChat is a fork of XChat with bug fixes and new features.. It's free and a continuation of the XChat-WDK project.

mIRC is a popular Internet Relay Chat client used by millions of people, and thousands of organizations, to communicate, share, play and work with each other on IRC networks around …

Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software developers of Pidgin. Instantbird is free software available under the …

KVIrc is a free portable IRC client based on the excellent Qt GUI toolkit. KVirc is being written by Szymon Stefanek and the KVIrc Development Team with the contribution of …

QIP Infium is a multiprotocol instant messaging client. It supports ICQ (OSCAR), Jabber (XMPP), Mail.ru Agnet (MRA), IRC, XIMSS, SIP, Twitter, Facebook and other.

Nettalk is a powerful but easy to use free (open source) IRC-client for Windows. The smart user interface is based on Windows standards, so it is easy to get used …

An IRC client for the Windows desktop which follows the Metro design guidelines.

Subway is a web-based IRC client with a multi-user backend and a JavaScript-heavy UI. Frontend/backend communication is done with websockets (or best available fallback where not available). The backend...

XChat is an IRC chat program for both Linux (Open Source) and Windows (Shareware, 30-day trial). It allows you to join multiple IRC channels (chat rooms) at the same time, …