💡 Pick it for the most polished Windows IRC experience with mature scripting and active maintenance.
mIRC is a popular Internet Relay Chat client used by individuals and organizations to communicate and share information in real-time.
Best Chatzilla Alternatives ranked by AI · updated Aug 2026
ChatZilla was an open-source IRC client developed as a Mozilla extension for users who wanted IRC access inside Firefox and other Mozilla applications. It provided channel management, scripting, logging, themes, and multi-server support, but development ended and it is not compatible with current Firefox releases.
Top 6 Chatzilla alternatives
💡 Pick it for a free, scriptable IRC client that works exceptionally well over SSH and on remote servers.
WeeChat is a fast, light, and extensible chat client.
💡 Pick it if you want IRC alongside other messaging accounts in one free desktop client.
Pidgin is a multi-platform instant messaging client that supports multiple chat networks simultaneously. It is free and open-source software.
💡 Pick it for a highly customizable graphical IRC client without a subscription.
KVIrc is a free portable IRC client based on the Qt GUI toolkit.
💡 Pick it for a clean, native-feeling IRC client on Linux, especially within the KDE desktop.
Konversation is an easy-to-use IRC client for the KDE desktop environment.
💡 Pick it for an extremely lightweight, scriptable IRC client that stays connected on remote Unix servers.
irssi is a terminal-based IRC client for UNIX systems.
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