PJIRC is a very complete Java IRC Client. It can be run from an applet, but can also be executed from any "stand alone" java virtual machine. Here is a non-exhaustive list of its features:

• Highlight support
• ASL handling
• Graphical bitmap used for smiley's
• Nickname auto completion
• Nick, channel and URL catcher
• Esthetical options such as background image, per-channel color configuration, and so on...
• UTF-8 encoding support
• Support for external control via javascript
• "On connect" command list
• Time stamping