Freeware Java chat applets to put on your website. Has ability to connect to IRC.

Presents this client which can run either as standalone application or a browser based applet. Includes a support forum, documentation and an online demonstration. [Open source, GPL]

Open source scriptable IRC client written in Java.

Java IRC client with multi-server and SSL support. Extensible via plugins. [Open source, MIT]

A library to manage the IRC protocol and client state in Java, separate from any client implementation.

Java IRC client with unique features.

Powerful IRC client written in Java. Supports all common standards (RFC 1459/2812, ident, mIRC colors). A Java web start version is available.

Project aims to create an easy-to-use, multi-platform and scriptable Java-based IRC client and a set of Java classes for adding IRC capabilities to other Java programs. [Open Source, MPL]

Open Source Java IRC client that supports DCC and multiple server connections. No longer maintained.

A Java 6 IRC library for building IRC clients with DCC and ident support.