Jettison
Jettison is a menu-bar utility for macOS that safely ejects all connected external drives with a single click or keyboard shortcut. It is particularly useful before putting your Mac to sleep or taking it mobile, as it ensures that all external disks—USB drives, Thunderbolt drives, SD cards, network volumes and more—are unmounted cleanly without data loss. Power users and professionals who regularly work with portable media appreciate Jettison's automation features, including the ability to eject drives automatically when the display turns off, when the Mac sleeps, or on a schedule. The app can also remount drives automatically when the Mac wakes up, preserving the user's workflow.
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1 suggestionJettison has shipped a native Apple Silicon build since version 1.8 and is actively maintained with regular updates that support the latest macOS releases. The current version is already a Universal Binary that runs natively on M-series Macs, so if you are still running an older Intel-only build under Rosetta, updating will give you better performance and battery efficiency. If you installed Jettison from the Mac App Store, open the App Store and update to the latest version through the Updates tab. If you downloaded it directly from St. Clair Software's website, visit stclairsoft.com/Jettison and download the current installer—it will automatically serve the Universal Binary on Apple Silicon Macs. Your license and settings carry over automatically after the update.
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