Quassel IRC

Spec sheet

Purpose

Quassel IRC is a cross-platform, distributed IRC client based on the Qt framework.Read 11 Oct 2026 · quassel-irc.org

Platforms

The project says it develops and tests Quassel on Linux, Windows, and MacOS X; third-party mobile clients exist for Android and iOS.Read 11 Oct 2026 · quassel-irc.org

Free plan

YesRead 20 Sep 2026 · quassel-irc.org

Support

The project invites questions and ideas in its #quassel community channel on Libera Chat.Read 11 Oct 2026 · quassel-irc.org

Maker

The About page names the core development team as Manuel “Sputnick” Nickschas and Marcus “EgS” Eggenberger.Read 11 Oct 2026 · quassel-irc.org

Android client

Quasseldroid is identified as the Android mobile client benefiting from improved core-side activity tracking and highlight rules.Read 11 Oct 2026 · quassel-irc.org

Channels

YesRead 20 Sep 2026 · quassel-irc.org

Core connection security

Quassel supports SSL encryption between clients and the core, which requires a PEM certificate for the core.Read 11 Oct 2026 · quassel-irc.org

Data storage

The downloads page says macOS packages and Windows builds do not support the PostgreSQL storage backend.Read 11 Oct 2026 · quassel-irc.org

Interface

The GUI includes dockable nick and topic bars, dockable channel and query buffers, and default or custom views.Read 11 Oct 2026 · quassel-irc.org

IRCv3

The 0.14.0 release highlights the addition of many IRCv3 capabilities.Read 11 Oct 2026 · quassel-irc.org

Known limitation

The project wiki lists DCC chat and file transfers as not supported.Read 11 Oct 2026 · wiki.quassel-irc.org

Logging

The project describes on-demand creation of log files in custom formats from the backlog.Read 11 Oct 2026 · quassel-irc.org

Monolithic mode

Quassel can combine client and core functionality in one binary for a local installation.Read 11 Oct 2026 · quassel-irc.org

Other release features

The 0.14.0 release also added HAProxy protocol support and Prometheus metrics support.Read 11 Oct 2026 · quassel-irc.org

Persistent sessions

One or more clients can attach to and detach from a central core that stays online, and reconnecting restores the session state and activity that happened while away.Read 11 Oct 2026 · quassel-irc.org

Plans and prices

Every Quassel IRC plan and price →

Where Specifiction places it

• Team chat apps#43 of 637.8