Muzzle

Muzzle is a macOS utility that automatically activates Do Not Disturb when a user begins a screensharing session. By detecting the start of screen sharing, it suppresses incoming notifications that could otherwise appear on the shared display, helping to avoid accidental exposure of personal or sensitive information.

The application works with a wide range of screen‑sharing tools and platforms, ensuring that the notification silencing is applied regardless of the specific service being used. It runs in the background and requires no manual intervention once configured, providing a seamless experience for users who frequently present or collaborate online.

Muzzle is positioned for individuals who need a reliable way to keep their desktop notifications hidden during meetings, webinars, or any live screen sharing. Its focus on simplicity and automatic handling of Do Not Disturb makes it a practical addition to a macOS workflow where privacy and professionalism are important.