Available everywhere!

No need for flash, java, or open ports, just a web browser that supports javascript. Currently supports IE6-8, Firefox, Chrome, Opera, iPhone and Android!

Free!

No signup required, just click chat and connect to your favourite IRC server. Login using OpenID to create an account and customise Ircster to suit you, save your favourite servers and automatically connect each time you visit.

Fast!

You can be chatting in a matter of seconds, by default Ircster has a basic set of features. However there are many plugins available to add exactly the functionality you want.