idleSound
Automatically mutes your Mac when it goes idle or the screen locks, so notification sounds and stray audio don’t keep playing while you’re away.
A lightweight menu bar app — no dock icon, no window to manage.
Features
- Mutes after a configurable idle timeout (off, 5, 15, 30, or 60 minutes)
- Mutes when the screen locks or the screensaver starts
- Both triggers can be toggled independently, right from the menu bar
Download
Grab a build from Releases, or clone and build it yourself in Xcode.
Screenshot
Known limitation
Doesn’t play well with Caffeine — Caffeine fakes user activity instead of registering with the system’s idle hooks, so idleSound never sees the Mac as idle while it’s running. Amphetamine and iCanSleep use real system hooks instead and don’t have this problem.
License
GNU General Public License v3.