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 …

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, …

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 …

Traditionally, chat clients on the Mac have been anything but glamorous. Colloquy is an advanced IRC, SILC & ICB client which aims to fill this void. By adhering to Mac …

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 …

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 …

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.

Konversation is an easy-to-use IRC client for novices, nut novices and experts can take advantage of its rich featureset.

Finch is a console-based IM program that lets you sign on to AIM, Jabber, MSN, IRC, Yahoo!, and other IM networks. It runs on Unixes. It uses GLib and ncurses.

WeeChat is a fast, light and extensible chat client. It runs on many platforms (including Linux, BSD and Mac OS). WeeChat is: - modular: a lightweight core with plugins around …

Galaxium is an instant messenger application designed for the GNOME desktop. It will allow you to connect to MSN, Jabber, and IRC. You can communicate with your family, friends and …

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 …

mIRGGI is the first IRC client for S60 3rd Edition devices. It is also available for 2nd edition devices. It is currently in early stages because I just began writing …

FlowChat is an advanced IRC client for the iPhone operating system. Features include photo uploading, embedded web browser, custom themes, auto-complete while typing nicknames/commands, management of channel...

Lingo is an IRC chat client designed with simplicity in mind that is ideal for both novice and expert users. It supports multi-server connections, notifications, auto completion, SSL encryption, UTF-8 …

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, …

Minbif aims to use the libpurple library from the Pidgin project to provide an IRC-friendly instant messaging client.