- [Ergo](https://ergo.chat/) - Modern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a bouncer. ([Source Code](https://github.com/ergochat/ergo)) `MIT``Go`
- [Ergo](https://ergo.chat/) - Modern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a bouncer. ([Source Code](https://github.com/ergochat/ergo)) `MIT``Go/Docker`
- [Glowing Bear](https://github.com/glowing-bear/glowing-bear) - A web frontend for WeeChat. ([Demo](https://www.glowing-bear.org)) `GPL-3.0``Nodejs`
- [Glowing Bear](https://github.com/glowing-bear/glowing-bear) - A web frontend for WeeChat. ([Demo](https://www.glowing-bear.org)) `GPL-3.0``Nodejs`
- [InspIRCd](https://www.inspircd.org/) - Modular IRC server written in C++ for Linux, BSD, Windows, and macOS. ([Source Code](https://github.com/inspircd/inspircd)) `GPL-2.0``C++`
- [InspIRCd](https://www.inspircd.org/) - Modular IRC server written in C++ for Linux, BSD, Windows, and macOS. ([Source Code](https://github.com/inspircd/inspircd)) `GPL-2.0``C++/Docker`
- [Kiwi IRC](https://kiwiirc.com/) - Responsive web IRC client with theming support. ([Demo](https://kiwiirc.com/nextclient/), [Source Code](https://github.com/kiwiirc/kiwiirc)) `Apache-2.0``Nodejs`
- [Kiwi IRC](https://kiwiirc.com/) - Responsive web IRC client with theming support. ([Demo](https://kiwiirc.com/nextclient/), [Source Code](https://github.com/kiwiirc/kiwiirc)) `Apache-2.0``Nodejs`
- [ngircd](https://ngircd.barton.de/) - Free, portable and lightweight Internet Relay Chat server for small or private networks. ([Source Code](https://github.com/ngircd/ngircd)) `GPL-2.0``C`
- [ngircd](https://ngircd.barton.de/) - Free, portable and lightweight Internet Relay Chat server for small or private networks. ([Source Code](https://github.com/ngircd/ngircd)) `GPL-2.0``C`
- [Quassel IRC](https://quassel-irc.org/) - Distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core. ([Source Code](https://github.com/quassel/quassel)) `GPL-2.0``C++`
- [Quassel IRC](https://quassel-irc.org/) - Distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core. ([Source Code](https://github.com/quassel/quassel)) `GPL-2.0``C++`
- [Robust IRC](https://robustirc.net/) - RobustIRC is IRC without netsplits. Distributed IRC server, based on RobustSession protocol. ([Source Code](https://github.com/robustirc/robustirc)) `BSD-3-Clause``Go`
- [Robust IRC](https://robustirc.net/) - RobustIRC is IRC without netsplits. Distributed IRC server, based on RobustSession protocol. ([Source Code](https://github.com/robustirc/robustirc)) `BSD-3-Clause``Go`
- [Tiny Tiny IRC](https://tt-rss.org/tt-irc/) - An open source AJAX-powered chat platform with support for IRC ([Source Code](https://git.tt-rss.org/fox/tt-irc)). `GPL-3.0``PHP/Java`
- [Tiny Tiny IRC](https://tt-rss.org/tt-irc/) - An open source AJAX-powered chat platform with support for IRC ([Source Code](https://git.tt-rss.org/fox/tt-irc)). `GPL-3.0``PHP/Java`
- [UnrealIRCd](https://www.unrealircd.org/) - Modular, advanced and highly configurable IRC server written in C for Linux, BSD, Windows, and macOS. ([Source Code](https://github.com/unrealircd/unrealircd)) `GPL-2.0``C`
- [UnrealIRCd](https://www.unrealircd.org/) - Modular, advanced and highly configurable IRC server written in C for Linux, BSD, Windows, and macOS. ([Source Code](https://github.com/unrealircd/unrealircd)) `GPL-2.0``C`
- [Weechat](https://weechat.org/) - Fast, light and extensible chat client. `GPL-3.0``C`
- [Weechat](https://weechat.org/) - Fast, light and extensible chat client. `GPL-3.0``C`