CGI:IRC is a Perl/CGI program that lets you access IRC from a web browser, it is designed to be flexible and
has many uses such as an IRC gateway for an IRC network, a chat-room for a website or to access IRC when stuck
behind a restrictive firewall.
See the features page for more information on the features or try the demo.
There's a new release out, with a security fix:
CVE-2017-8920: XSS in 'R' parameter. Thanks to Niklaus Schiess for discovering this.