HexChat and Graphical IRC Clients: A Practical Comparison

I spent most of the early 2000s telling people that real IRC users only use terminal clients. Then I ran a helpdesk channel on a mid-sized network and realized that half the users coming in with broken configurations were fighting mIRC or some ancient Java applet. Around 2006, I started recommending XChat to anyone who would listen. When HexChat forked from it, I switched without looking back. Over the years I've tested every graphical IRC client that compiles on Linux, and a few that only run on Windows. Here's what I've learned from actually running them, not just reading feature lists.

Why GUI Clients Still Matter

Terminal clients are great. I still use WeeChat for my daily bouncer connection. But graphical clients solve a different problem. They lower the barrier for new users. They handle DCC file transfers without arcane configuration. They show clickable URLs without tmux gymnastics. They let you drag and drop files to a channel.

For network operators, recommending a good GUI client to your user base means fewer support tickets. People who can see their channel list, click to join, and visually manage their NickServ identification tend to stick around longer. The population of your network depends partly on how easy it is for someone to connect for the first time.

There's also the multi-network scenario. If you're on three networks simultaneously — say, Libera.Chat, your own private network, and an XDCC network for legal file sharing — a GUI client with tabbed server windows is genuinely easier to manage than three tmux panes. I know terminal purists will disagree. That's fine.

HexChat: The Workhorse

HexChat forked from XChat in 2009 after XChat's author started charging for Windows builds. It's been the default recommendation for graphical IRC on Linux ever since. GTK-based, cross-platform, and stable enough that I've left it running for weeks without a memory leak.

The interface is conventional: server list on the left, channel buffer in the center, user list on the right. Nothing fancy. Everything works. The preferences dialog exposes most settings without touching config files, which matters for users who aren't comfortable editing text files.

HexChat supports Python and Perl plugins natively. The plugin API is well-documented and stable across versions. Here's a minimal Python plugin that logs all CTCP VERSION replies to a file:

import hexchat
import time

__module_name__ = "ctcp_logger"
__module_version__ = "1.0"
__module_description__ = "Logs CTCP VERSION replies"

def on_ctcp(word, word_eol, userdata):
    if word[0].upper() == "VERSION":
        nick = hexchat.get_info("nick")
        with open("/tmp/ctcp_versions.log", "a") as f:
            ts = time.strftime("%Y-%m-%d %H:%M:%S")
            f.write(f"{ts} {word[1]} replied: {word_eol[2]}\n")
    return hexchat.EAT_NONE

hexchat.hook_print("CTCP Generic", on_ctcp)
print("CTCP logger loaded.")

Drop that in ~/.config/hexchat/addons/ and it loads on startup. No compilation, no fuss.

HexChat also handles SASL authentication out of the box. In the network editor, you pick SASL (username + password) or SASL EXTERNAL for client certificates. It just works, which is more than I can say for configuring SASL in some terminal clients.

KVIrc: The Scriptable Powerhouse

KVIrc is the most configurable graphical IRC client in existence. Full stop. It has its own scripting language (KVS), theme engine, dockable panels, and a level of customization that borders on overwhelming. The first time I opened KVIrc's settings, I counted over 200 individual configuration options spread across dozens of tabs.

The KVS scripting language is unique to KVIrc. It's not Python. It's not TCL. It's its own thing, vaguely C-like with IRC-specific builtins. Here's an example that auto-voices anyone who joins a channel and has a registered nick:

event(OnJoin, auto_voice)
{
    if($chan.isOp($me))
    {
        # Wait 2 seconds for services to identify them
        timer -s ("check_reg_" . $nick, 2000)
        {
            if($str.match("*is a registered nick*", $whois($nick).info))
            {
                mode $channel +v $nick
            }
        }
    }
}

KVIrc also supports Python and Perl through binding modules, so you aren't locked into KVS if you prefer a mainstream language. The built-in theme engine lets you change not just colors but the entire layout, including custom MDI (multiple document interface) modes where channels appear as floating windows inside the main frame.

The downside: KVIrc has fewer active maintainers than HexChat. Releases are infrequent. The documentation, while extensive, hasn't been fully updated since version 4. Some Linux distributions ship version 4.x while version 5 has been out for a while. Check your package manager carefully.

Konversation: KDE's Native Option

If you run KDE Plasma, Konversation integrates beautifully with your desktop. KWallet stores your passwords. KDE notifications work natively. The application follows KDE's HIG (Human Interface Guidelines), so it looks and feels like every other KDE app.

Konversation is deliberately simpler than KVIrc. It has fewer settings, fewer customization options, and no built-in scripting language. What it does have is a clean interface, solid DCC support, and DCOP/D-Bus scripting that lets you control it from external scripts.

Here's how you send a message to a channel from a bash script via D-Bus:

#!/bin/bash
# Send a message to #mychannel on the first server connection
qdbus org.kde.konversation /irc say "Libera.Chat" "#mychannel" "Build completed at $(date)"

# Join a channel
qdbus org.kde.konversation /irc join "Libera.Chat" "#newchannel"

This is useful for integrating IRC notifications into build systems or monitoring scripts. I used this pattern for years to pipe Nagios alerts into an IRC channel without running a separate bot.

Konversation also handles multiple server connections well, with a tree view that groups channels under their parent network. The built-in auto-replace feature is handy — you can define text substitutions so typing :shrug: sends the ¯\_(ツ)_/¯ string.

The limitation: it's KDE-only in practice. You can run it on GNOME or XFCE, but you'll pull in half of KDE Frameworks as dependencies, and it looks out of place.

Smuxi: The Underdog

Smuxi (Smart MUltipleXed Irc) tried to solve a real problem: split the IRC client into a frontend and a backend engine so you could connect from multiple devices to the same persistent session. The concept is similar to what ZNC does, but built into the client itself.

Written in C# using Mono/.NET, Smuxi runs on Linux, macOS, and Windows. The frontend connects to a Smuxi engine running on a server, and your scrollback and state persist across reconnections. In theory, this is brilliant.

In practice, Smuxi development has slowed significantly. The last stable release was years ago. The Mono dependency causes packaging headaches on modern distributions. The GTK# interface feels dated compared to HexChat or KVIrc.

I ran Smuxi as my daily driver for about six months in 2014. The engine/frontend split worked well when it worked. But the engine process consumed more memory than expected, and reconnection after network interruptions was flaky. I switched back to ZNC + HexChat and never looked back.

Scripting Compared

Scripting capability is what separates a casual IRC client from an operator's tool. Here's how the four clients stack up:

HexChat wins on plugin ecosystem size. The hexchat.readthedocs.io site has a plugin writing guide and API reference. Third-party plugins cover everything from YouTube title fetching to automatic SASL fallback. KVIrc's KVS is more powerful in terms of what you can do without external dependencies, but fewer people write KVS scripts than Python HexChat plugins.

For automation tasks — auto-op, flood protection, channel statistics — HexChat's Python interface is the most practical choice. You write standard Python. You can import any library. You can debug in a normal Python workflow.

import hexchat

__module_name__ = "auto_op"
__module_version__ = "1.0"
__module_description__ = "Auto-op users on a whitelist"

OP_LIST = ["trusteduser", "anotheroper", "mybotaccount"]

def on_join(word, word_eol, userdata):
    nick = word[0]
    channel = hexchat.get_info("channel")
    ctx = hexchat.get_context()
    # Only act if we're opped
    for user in ctx.get_list("users"):
        if user.nick == hexchat.get_info("nick") and "@" in user.prefix:
            if nick.lower() in [n.lower() for n in OP_LIST]:
                hexchat.command(f"MODE {channel} +o {nick}")
            break
    return hexchat.EAT_NONE

hexchat.hook_print("Join", on_join)
print("Auto-op loaded.")

Which One Should You Pick

My recommendation depends on your situation:

New to IRC, any desktop environment: HexChat. It's the safest bet. Packages exist for every major distribution. The defaults are sane. You won't need to read documentation to connect to a network.

KDE Plasma user who wants integration: Konversation. It respects your system theme, stores passwords in KWallet, and doesn't require learning a plugin API to be useful.

Power user who wants total control: KVIrc. If you enjoy spending an evening customizing your client to do exactly what you want, KVIrc will reward you. The learning curve is steep but the ceiling is high.

Persistent session without a bouncer: Smuxi was designed for this, but given its maintenance status, I'd recommend ZNC + any GUI client instead. You get the same persistent scrollback with a more actively maintained stack.

One thing I want to note about all of these clients: they all support TLS/SSL connections, SASL authentication, and IRCv3 capabilities to varying degrees. HexChat and KVIrc have the best IRCv3 support. Konversation is catching up. Smuxi's IRCv3 support is minimal. If your network requires specific IRCv3 extensions like server-time or message-tags, check the client's capability list before committing.

Finally, don't overlook the resource angle. On a machine with limited RAM — say, a cheap VPS where you run an X11 session over VNC — HexChat is the lightest of the four. KVIrc with all its features loaded consumes noticeably more memory. Konversation pulls in KDE libraries. Smuxi drags in Mono. If resources are tight, HexChat is the practical choice.