ZNC

Weechat

3.3k

Fast, light and extensible chat client

Ergo

3.1k

Modern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a...

InspIRCd

1.3k

Modular IRC server written in C++ for Linux, BSD, Windows, and macOS

Quassel IRC

763

Distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a...

ngircd

542

Portable and lightweight Internet Relay Chat server for small or private networks

UnrealIRCd

504

Modular, advanced and highly configurable IRC server written in C for Linux, BSD, Windows, and macOS