The best open source alternative to XChat for Linux is Pidgin. If that doesn't suit you, our users have ranked more than 50 alternatives to XChat for Linux and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to XChat for Linux are HexChat, SeaMonkey, WeeChat and irssi.
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.
Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.
WeeChat is a free chat client, fast and light, designed for many operating systems. It is highly customizable and extensible with scripts.
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...
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.
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.
Konversation is an IRC client which gives you speedy access to Freenode network's channels, where you will find support for most distributions.
Traditionally, chat clients on the Mac have been anything but glamorous. Colloquy is an advanced IRC, SILC & ICB client which aims to fill this void. By adhering to Mac OS X interface conventions, Colloquy has the look and feel of a quality Mac application.
LimeChat is an IRC client for Windows, Mac OS X and iOS.
Features
Can connect to multiple servers in a window By key operation was rich, achieve a sense of comfortable operation Customization capabilities over the details Stable operation at light Search and comfortable log in.
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Based off of the XChat codebase.
Updated and actively developed.
It is a near "drop in" replacement.