There are many alternatives to Quassel IRC for Linux if you are looking for a replacement. The best Linux alternative is HexChat, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Quassel IRC and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Quassel IRC are WeeChat, Trillian, irssi and XChat for Linux.
HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.
WeeChat is a free chat client, fast and light, designed for many operating systems. It is highly customizable and extensible with scripts.
Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.
Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.
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.
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.
The Lounge is a web IRC client that you host on your own server. This is the official, community-managed fork of @erming's great initiative, the Shout project.
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.
Smuxi is an irssi-inspired, flexible, user-friendly and cross-platform IRC client for sophisticated users, targeting the GNOME desktop.
The sushi IRC suite consists of a central daemon and several clients, which communicate via DBus.
Subway is a web-based IRC client with a multi-user backend and a JavaScript-heavy UI. Frontend/backend communication is done with websockets (or best available fallback where not available). The backend supports connection persistence and optional logging when the browser...
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HexChat is a full IRC client, just like Quassel IRC.