Open Source Windows 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.

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.

Lost Bot is an IRC Mafia Game Bot coded in TCL. Users register and start off in a 2D city trying to exhort businesses, buying weapons and killing each other. The more respect you gain, the more powerful you are. It will contain a webserver.

This project includes an event-driven IRC client framework written in Python, as well as an object-oriented wrapper class and some example programs.

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

Quassel IRC is a free, open-source Internet Relay Chat client designed for continuous communication across multiple devices. Unlike traditional IRC applications, it separates the graphical client from a central background core. The core maintains IRC server connections even when users disconnect their desktop clients. This architecture allows conversations and message histories to remain available across different computers. Users can connect multiple clients to the same core and manage several IRC networks simultaneously. Quassel also supports a standalone configuration that combines the client and core into one application. Its interface provides channel management, notifications, and conversation organization. Built with Qt and available for major desktop platforms, Quassel offers a flexible solution for persistent IRC communication.

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.

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.

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

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

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!!

pisg is a smart Perl script which generates nice looking statistics out from IRC logfiles. It's a funny thing for the users of your channel :)

oidentd is an RFC 1413 compliant ident daemon that runs on Linux, FreeBSD, OpenBSD, NetBSD, DragonFly BSD, and some versions of Darwin and Solaris. oidentd can handle IP/NAT masqueraded connections on many operating system kernels. oidentd has a flexible mechanism for specifying ident responses. Users can be granted permission to specify their own responses, and different responses can be sent depending on host and port pairs. oidentd features a capability-based permission system that allows system administrators fine-grained control over which functionalities may be used by each user.

dxirc is simple IRC client

Unreal is a IRCd based on the Dreamforge branch of IRCd, with the goal to provide a solution to network who want features and stability - and support. Its goal is to compete against both commercial and opensource ircds of same kind.

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.

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.

ZxoR Gatherbot is GNU GPL Licensed, IRC MSL Based, Counter-Strike 1.6 Multi-Gatherbot system.

X-Chat is an IRC (Internet Relay Chat) program for Linux and Windows.

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).

Gamers.IRC is a full MSL Script for mIRC, the most popular Windows IRC client. Gamers.IRC is for Windows 95 and higher. Source code: Download and run the installer. Open the .grc and .ini files with notepad.

TkPoker is an IRC poker client with a simple, attractive interface that runs under any operating system to which Tcl/Tk has been ported. No additional IRC software is required. If you can browse the web, you can play poker with TkPoker!

Jabber Bot which provides interface to telnet connection (over 23). Besically it allows interaction with some MUDs or Talkers over the IM clients (pidgin, gajim, gtalk, etc).

The freeware add-on script for the IRC chatting client mIRC®.