Top Alternatives to AdiIRC

HexChat is a free and open-source Internet Relay Chat (IRC) client. Built upon the foundations of XChat, it offers a robust platform for connecting to various IRC networks and participating in real-time text-based conversations, making it a favored choice for users seeking a reliable and customizable chat experience.

XChat for Linux is a venerable IRC chat client designed for connecting to IRC networks and participating in chat rooms (channels). It offers support for multiple simultaneous connections, public and private conversations, and a high degree of customization through plugins.

mIRC is a classic Internet Relay Chat (IRC) client for Windows, providing a robust and highly customizable interface for connecting to IRC networks and participating in online chat communities.

Irssi is a highly customizable command-line IRC client popular among power users and system administrators for its extensibility and efficiency.

Quassel IRC is a powerful, distributed, and cross-platform IRC client designed for continuous connectivity and efficient management of multiple IRC networks and conversations.

KVIrc is a versatile and highly customizable graphical IRC client available for Linux, Unix, macOS, and Windows. It is designed to cater to both seasoned IRC users seeking advanced control and newcomers looking for a user-friendly interface to connect to various IRC networks.

Smuxi is a feature-rich, cross-platform IRC client designed with productivity and usability in mind. Inspired by the command-line power of Irssi, it provides a graphical interface for seamless communication across multiple networks including IRC, XMPP, and Twitter.

X-Chat 2 for Windows is an unofficial, open-source build of the popular X-Chat IRC client, specifically tailored for the Windows operating system. It provides a robust platform for connecting to various IRC networks and engaging in real-time communication with other users.

Multi-platform IRC client tightly integrated with Mozilla browsers, offering a familiar interface for seamless chat experiences.

Kiwi IRC is a modern, open-source web-based Internet Relay Chat (IRC) client designed for simplicity and ease of use. It allows users to connect to various IRC networks directly through their web browser without needing to install desktop software.

Textual is a premium Internet Relay Chat (IRC) client exclusively designed for macOS. It provides a user-friendly interface, extensive customization options through themes and plugins, and robust support for common IRC features, aiming to offer a modern and polished chat experience.

LimeChat is a feature-rich and user-friendly Internet Relay Chat (IRC) client specifically designed for macOS. It provides a clean interface for connecting to multiple IRC networks and channels.

Shout is a modern, self-hosted web-based IRC client designed for ease of use and accessibility. It allows users to connect to IRC networks and channels directly through their web browser, offering continuous connectivity even when the browser is closed.