mIRC is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Discord, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to mIRC and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to mIRC are Pidgin, HexChat, WeeChat and KVIrc.
An integrated platform for text and voice communications. Offers tailored channels for different topics, customizable moderation tools, low latency for fluency, and managed user roles for optimal community facilitation.
Pidgin is a chat program which lets you log into accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on XMPP and sitting in an IRC channel at the same time.
HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.
Similar to Mirc but less complex
WeeChat is a free chat client, fast and light, designed for many operating systems. It is highly customizable and extensible with scripts.
Free open-source IRC client offering cross-platform support, Qt interface, rich scripting, customizable themes, Unicode, SSL encryption, logging, multi-server connectivity, DCC file transfers, plugin system, event automation, proxy and IPv6 compatibility, and localization.
It's free, has certain nice extra features and a better scripting language.
Good features, very stable and free, aside from mIRC there's nothing better out there.
Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.
Quassel IRC is a modern, cross-platform, distributed IRC client based on the Qt5 framework. Distributed means that one (or multiple) client(s) can attach to and detach from a central core that stays permanently online -- much like the popular combination of screen and a...
XChat is an IRC chat program for both Linux and Windows. It allows you to join multiple IRC channels (chat rooms) at the same time, talk publicly, private one-on-one conversations etc. Even file transfers are possible.
Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application.
Konversation is an IRC client which gives you speedy access to Freenode network's channels, where you will find support for most distributions.
Smuxi is an irssi-inspired, flexible, user-friendly and cross-platform IRC client for sophisticated users, targeting the GNOME desktop.
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Open source, light and customizable, i recommend it