Growl
Growl is a framework that provides a unified system-wide notification mechanism for macOS applications. It allows third-party apps to display customizable alerts and notifications using Growl's display styles, rather than each application implementing its own notification system. Growl was widely used from the mid-2000s until Apple introduced Notification Center in OS X 10.8 (Mountain Lion, 2012), which prompted a gradual transition away from third-party notification frameworks. The framework includes a helper daemon (GrowlHelperApp) and the growlnotify command-line tool for triggering notifications from shell scripts and applications. As a framework component, Growl is not a standalone application but a system library that other apps depend on.
AI Recommendation
1 suggestionGrowl is a framework component tied to a notification system that Apple deprecated over a decade ago with the introduction of macOS Notification Center. The official Growl project ceased active development in 2014 (with the last stable release in 2013, version 2.1.4), and the framework relies on deprecated Carbon APIs that no longer function reliably on modern macOS versions. Any applications still depending on Growl for notifications are themselves likely abandoned. Rather than attempting to update or maintain Growl, the recommended approach is to identify which applications on your Mac are using Growl and migrate them to modern alternatives that use the native macOS Notification Center. For new macOS versions and moving toward September 2028 when Apple removes Rosetta 2, Notification Center is the standard and natively supported notification mechanism. If you are a developer maintaining legacy code that depends on Growl, transition those applications to use NSUserNotificationCenter or UNUserNotificationCenter (for newer macOS). End users should simply remove Growl and update any dependent applications to versions that use native notifications, or replace those applications with actively maintained alternatives.
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