Open Source Linux IRC Clients

See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.

BitchX is an IRC client based on ircII/EPIC4. It includes many features that are usually relegated to scripts such as CDCC and flood protection -- you can just start it and go. Development was on hiatus for a while but is now resuming.

Halloy is an open-source IRC client written in Rust, utilizing the Iced GUI library. It aims to provide a simple and fast client for Mac, Windows, and Linux platforms

Ghost is an open source irc bot project. It is loosely based off of eggdrop 1.4. Created by Einride and Ievil. No longer maintained, and has a weakness in its encryption used for linking.

Nested commands, easy configuration, and an incredibly flexible and easy-to-use plugin system distinguish Supybot from other IRC bots. There simply isn't a more flexible or easier to use IRC bot!

Plugin for Irssi which monitors torrent IRC announce channels, downloads torrent files based on a user-defined filter, and then sends the torrent files to a local or remote torrent client. Supports several different private trackers.

A graphical notification plugin for the instant message client gaim. Now hosted at http://plugins.guifications.org/trac

Effortlessly browse and search XDCC packs with this streamlined tool for mIRC and AdiIRC, crafted by Eric^^. Say goodbye to tedious channel interactions! Simply load the script (`/load -rs xdccv.mrc`) and let it build a comprehensive database while you idle. Then, use the commands `/xdccv` or `/xdccs` to find your desired files. Keep it alive. Make it better. Compatible with Windows 10/11 and Linux via WINE. Get the latest updates and source code here: https://pastebin.com/HUmDgd0g

X-Chat Aqua is X-Chat with an Aqua interface for MacOS X. X-Chat Aqua uses the irc engine from X-Chat, and is designed to look and feel like the GTK+ front end.

A complete rewrite of the mobile java irc-client WLIrc. (http://wirelessirc.sourceforge.net) Aims to be more responsive and use less memory maintaining the current gui and looks.

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.

Undernet Coder Committee -- ircu development

IRCD-Hybrid is a lightweight, high-performance Internet Relay Chat server.

Features include: authentication, channel control, a full-featured Memo system, a Seen system, logging capabilities, a help system, the ability to act as a file sharing node and the ability to share data and perform functions together with other bots.

Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.

libircclient is a small but powerful library, which implements client-server IRC protocol. It has all features needed to create your own IRC client or bot, including multi-threading support, sync and async interfaces, CTCP/DCC support, colors, SSL connections and so on.

This is a c++ XDCC client with ajax webinterface!!

Plugin for ChatZilla which monitors torrent IRC announce channels, downloads torrent files based on a user-defined filter, and then sends the torrent files to a local or remote torrent client. Supports several different private trackers.

PJIRC is a full-featured Java-based IRC client

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).

NOTICE: We're not on SourceForge anymore. See http://autoproj.org for our new domain. Auto is modern, simple, and smart automated bot software, designed per a philosophy of minimalism, simplicity, usability, cleanliness, and easy extensibility. It has support for IRC (v3.1) with planned support for XMPP. It can be easily extended by means of its plugin API, and offers a host of features. It is known to function on any OS on which Ruby 1.9 functions (such as Linux, Mac OS X, BSD, Microsoft Windows, etc.).

Wraith is an open source IRC bot written in C++. It has been in development since late 2003. It is based on Eggdrop 1.6.12 but has since evolved into something much different at its core.

dxirc is simple IRC client

ZNC is an IRC bouncer with many advanced features such as a built-in web interface, persistent connection (detaching), multiple users, per channel playback buffer, SSL, IPv6, transparent DCC bouncing, and c++ module support, to name a few.

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.