ShadowIRC is a new MacOS IRC client, written specifically with speed and extensibility in mind. ShadowIRC is extensible. How? ShadowIRC is extensible with C-coded plugins, compiled with CodeWarrior. This makes ShadowIRC plugins much faster and much...

Can you believe this software still works? Well it does work still in 2017! Some minor issues you may see is a failure to add contacts- restart the app and you should see the new contacts added in. You may not be able to register new accounts...

Gerry's ICQ was the best ICQ clone for classic Mac OS and was featured packed with functionalities that were missing in the first Mac versions of the genuine ICQ (from Mirabilis and later AOL) Before abandonning this project in 2004, Gerry...

Pegasus is a server/client chat platform that uses TCP/IP with a proprietary protocol to connect clients to a server and allow them to chat with other connected clients and browse "rooms" with different backdrop pictures by clicking...

AOL Instant Messenger was a popular chat client which let you connect to the AOL network, AIM, ICQ and iChat all at once.  This is an older version but the last one to be 68K compatible. See also: AOL Instant Messenger 4.7    

FOSS instant messaging client. Written in Cocoa API, released under GNU GPL .

Mac Messenger is a MacOS 8/9/X client for Microsoft's MSN Messenger Service. It features full contact management, single and group chat, emoticons, fonts and colors. It includes many other features to make your chat experience even more...

  Similar to conventional wireless paging devices, the ichat Pager allows people to instantly locate and contact each other online. Instead of activating a conventional pager, ichat Pager alerts its users of an incoming page by displaying a...

IRC chat app for 1990's Macs.

Want to chat in MySpace on your Mac? It's possible now with CrystalIDEA MySpace For MAC! Top Features: Chat with your Windows friends Manage your Contacts You can add new contacts or remove them from the contact list, add or...

IRC for the rest of us Conversation makes chatting on the IRC network as easy as using iChat and other IM clients. Conversation allows you to chat in channels and with your friends, in a simple, elegant and mac like interface without the use of any...

smIRCle is a new IRC client... [and] is loosely based on the sources of ircle 1.5.1 written by Olaf Titz back in 1990-92 which I took over and developed further. It is in no way related to ircle 2.x and ircle 3.0 except that those were originally...

Recognized as the de-facto shareware IRC client for Macintosh.  Officially discontinued in 2009.

Global IRC-d is the first working IRC server for computers running MacOS. It supports all major features and clients...   Running an IRC server means that you have control over what happens on the server. You can use the server for...