Everything you plug in.
One place to let go.
UMounter lives quietly in your menu bar until you need it — then it just works.
One-click eject. Or one keystroke.
Eject every external disk from the menu bar, or pick a single one. Assign global hotkeys for Eject All, Eject & Sleep, and Remount.
“In use” help
Can’t eject? UMounter shows which apps are holding the disk and lets you quit them.
You choose what
Hard disks, SSDs, DVDs, disk images, network drives, SD cards — include only what you want in Eject All.
Unmount, then remount
Unmount flash drives and SD cards without unplugging, and remount them after wake.
Nested images, handled
Disk images inside disk images are ejected in exactly the right order.
Know it’s safe
A progress HUD while ejecting, and an optional “safe to unplug” checkmark right in the menu bar.
Quiet by default
Notifications and sounds are fully optional. Low Power Mode means even less background work.
Set it. Forget it.
Let your Mac do the ejecting while you do something else.
Ejects before you leave.
Never yank a drive from a sleeping Mac again.
- Before system sleep
- After the display turns off
- Before logout, restart or shutdown
- Remount disks automatically after wake
Tidies up after itself.
Disk images and idle drives clean themselves up.
- Auto-eject disk images after a set time
- Move installers in Downloads to the Trash
- Auto-eject idle disks nothing is reading or writing
Your rules for Eject All.
Decide exactly which kinds of volumes are included — and which are left alone.
- Hard disks and SSDs
- DVDs and CDs
- Disk images & network drives
- SD cards
