There are a number of IRC client tools available on the internet. Some of those are free while others are paid. Some paid IRC client tools also offer free trials to the users so that they can decide whether they have to purchase that IRC client or not. In this cut-throat competitive market, each IRC client tool offers some unique features. Hence, it is difficult to say which IRC client software is the best. It ultimately depends on the users which features of the IRC client software make it the best for them.