From KDE UserBase Wiki
Quassel IRC is a modern, cross-platform, distributed IRC client.


A chat in quassel (click to enlarge).
  • Quassel has a modern GUI with dockable nicklist and topic bar and customizable views.
  • Quassel is cross-platform. That means that it will run under Linux, MacOS, and Windows.
  • Quassel optionally supports a stand alone so called core that can stay connected to the IRC channels. One or more Quassel clients can connect to the core and continue chatting where ever they left the network. That includes a kind of BNC functionality so that you can follow the discussions that happened during your absence.


  • Why is there no close chat menu item?
This is because Quassel has a different approach to logging in and out of a chat. You can Hide a chat temporarily or Hide a chat permanently. If you hide a chat temporarily, the chat will remain active till you unhide it. If you want to remove a channel completely, for example because you entered it accidentially and it does not exist, do the following: Select the channel, right-click, choose Part -> Delete Chat(s)... -> Yes.
  • Why is it named Quassel?
"quasseln" is a familiar German expression for "talking".
  • What do the colors mean?
gray - inactive
black - normal
blue - there are unread messages
orange - someone called your name
green - other activity
You can change the colors under Settings -> Configure Quassel... -> Chat & Nick Lists -> Use Custom Colors