Atomic IRC Alternatives

Atomic IRC has been discontinued. Similar apps include Pidgin, which is free and open source. Other options are SeaMonkey, HexChat, Adium and Trillian. There's no shortage of IRC Clients like Atomic IRC, with more than 50 alternatives for Windows, Linux, Mac, the web and self-hosting.

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Atomic IRC alternatives page was last updated Jun 13, 2026

Kaidan
4 likes
Kaidan is a simple, user-friendly Jabber/XMPP client providing a modern user interface using Kirigami and QtQuick. The back-end of Kaidan is written in C++ using the QXmpp XMPP client library and Qt 5.
80 Kaidan alternatives
Cost / License
Free
Open Source
Application type
Instant Messenger
Origin
Germany
EU
Platforms
Linux
Android
Ubuntu Touch
Plasma Mobile
Flathub
Germany
EU
Good alternative?Is Kaidan a good alternative to Atomic IRC?
Kiwi IRC
27 likes
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.
Cost / License
Free
Open Source (Apache-2.0)
Application type
IRC Client
Origin
United Kingdom
Platforms
Online
Self-Hosted
Google Chrome
United Kingdom
Good alternative?Is Kiwi IRC a good alternative to Atomic IRC?
IrisChat
1 like
IrisChat is a lightweight, open-source IRC client for Android with a clean modern interface, local database encryption, and end-to-end encrypted DMs via the Signal Protocol.
Cost / License
Free
Open Source (MIT)
Application typeApplication types
IRC Client
Instant Messenger
Origin
Türkiye
Platforms
Android
Türkiye
Good alternative?Is IrisChat a good alternative to Atomic IRC?
Smuxi
30 likes
Smuxi is an irssi-inspired, flexible, user-friendly and cross-platform IRC client for sophisticated users, targeting the GNOME desktop.
Cost / License
Free
Open Source (GPL-2.0)
Application type
IRC Client
Origin
Germany
EU
Platforms
Mac
Windows
Linux
Germany
EU
+2
Good alternative?Is Smuxi a good alternative to Atomic IRC?
IRCCloud
16 likes
IRCCloud is an IRC client with a future. Stay connected, chat from anywhere, and never miss a message.
Cost / License
Freemium
Proprietary
Application type
IRC Client
Origin
United Kingdom
Platforms
Online
Android
iPhone
United Kingdom
+5
Good alternative?Is IRCCloud a good alternative to Atomic IRC?
Colloquy
33 likes
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.
48 Colloquy alternatives
Cost / License
Free
Open Source
Application type
IRC Client
Origin
Estonia
EU
Platforms
Mac
Estonia
EU
Good alternative?Is Colloquy a good alternative to Atomic IRC?
Chatzilla
19 likes
ChatZilla is a clean, easy to use and highly extensible Internet Relay Chat (IRC) client, built on the Mozilla platform, which provides all the usual features: multiple servers, a built-in list of standard networks, easy searching and sorting of available channels, logging, and...
Cost / License
Free
Open Source
Alerts
Discontinued
Platforms
Mac
Windows
Linux
SeaMonkey
Firefox
Good alternative?Is Chatzilla a good alternative to Atomic IRC?
Textual
21 likes
Textual is the world's most popular application for interacting with Internet Relay Chat (IRC) chatrooms on macOS.
Cost / License
Paid
Proprietary
Application type
IRC Client
Origin
United States
Platforms
Mac
United States
Good alternative?Is Textual a good alternative to Atomic IRC?
Konversation
26 likes
Konversation is an IRC client which gives you speedy access to Freenode network's channels, where you will find support for most distributions.
Cost / License
Free
Open Source
Application type
IRC Client
Origin
Germany
EU
Platforms
Linux
Haiku
Flathub
Snapcraft
Germany
EU
Good alternative?Is Konversation a good alternative to Atomic IRC?
X-Chat 2 for Windows
22 likes
A freeware build of X-Chat for windows, as opposed to the official 30-day-trial shareware Windows build.
51 X-Chat 2 for Windows alternatives
Cost / License
Free
Proprietary
Origin
Lithuania
EU
Alerts
Discontinued
Platforms
Windows
Lithuania
EU
+1
Good alternative?Is X-Chat 2 for Windows a good alternative to Atomic IRC?
LimeChat
15 likes
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.
Cost / License
Free
Open Source
Application type
IRC Client
Origin
Japan
Platforms
Mac
Windows
iPhone
iPad
Japan
+5
Good alternative?Is LimeChat a good alternative to Atomic IRC?
Polari
12 likes
Polari is an Internet Relay Chat (IRC) client designed for GNOME 3.
Cost / License
Free
Open Source (GPL-2.0)
Application type
IRC Client
Platforms
Linux
Flathub
GNOME
Linux Mobile
+2
Good alternative?Is Polari a good alternative to Atomic IRC?