Quassel IRC

Quassel IRC is an open-source distributed IRC client that separates the connection logic from the user interface. It consists of a central core server that maintains permanent connections to IRC networks and one or more graphical clients that attach to this core to send and receive messages. This architecture ensures that the user remains connected to their chosen channels regardless of whether a local client is currently active.

Users deploy the Quassel core on a server to act as a persistent gateway, which functions similarly to a combination of a bouncer and a client. The graphical clients are cross-platform applications that allow users to access their chat history and active sessions from different devices by connecting to the core server. This setup allows for a consistent chatting experience across various operating systems while keeping the heavy lifting of network maintenance on the server side.

Key features

• Distributed architecture with a central core server
• Ability for multiple clients to attach and detach from one core
• Persistent connection to IRC networks via the core
• Graphical user interface for chat management
• Core-side storage for user data and settings
• Administrative tools for user management via command line
• Support for multiple user accounts on a single core
• Cross-platform compatibility for client applications

The system utilizes a database to store chat history and configuration on the server side, ensuring that messages are not lost when a client disconnects. Initial setup is handled through a wizard that creates the database and an administrative user. System administrators can manage additional users or change passwords using the quasselcore command line interface, which also supports specifying custom configuration directories for different system environments. The software is distributed under the GPL license, allowing users to inspect and modify the source code.

Quassel IRC is designed for users who require a graphical IRC experience with the persistence of a bouncer and the flexibility of multiple access points.