HexChat - HexChat is a fork of XChat with bug fixes and new features.

Chatib - Chatib is an online chat room where you can meet and chat with new people, make them friends, or even data them online.

irssi - Irssi is a terminal based IRC client for UNIX systems.

Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Kiwi IRC - A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.

Chattusa - Chattusa is a social network website that provides a free chat service and lets you connect with people from the USA without any hassle.