Quassel IRC is described as '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' and is a popular IRC Client in the social & communications category. There are more than 50 alternatives to Quassel IRC for a variety of platforms, including Windows, Linux, Mac, Web-based and Self-Hosted apps. The best Quassel IRC alternative is HexChat, which is both free and Open Source. Other great apps like Quassel IRC are WeeChat, Trillian, mIRC and irssi.
HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.
Quassel core is a primary part, somewhat of a bouncer. The Quassel client(s) are the other part of Quassel. Hexchat is only a client AFAIK.
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.
Enables real-time chat on Windows with group or private messaging, multi-server access, file transfers, encryption, proxy and IPv6 support, chat logging, notifications, dark mode, and a scripting language for custom automation or developing communication tools and games.
Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.
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.
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.
XChat is a full IRC client, just like Quassel IRC.
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.
A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely. More friendly than other webirc clients giving the general public an easy option to connect to any IRC network.
IRCCloud is an IRC client with a future. Stay connected, chat from anywhere, and never miss a message.
Convos is an IRC client that runs in your browser and brings the IRC experience into the 21st century. It features a persistent bouncer on the server side that will keep you online even after you close your browser window. Want to use Convos on your phone? No problem!
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HexChat is a full IRC client, just like Quassel IRC.