What is usbmuxd on a Mac? The iPhone and iPad USB connection service
What the usbmuxd process does in macOS, why it can use CPU or memory, and whether you can stop it.
What is usbmuxd?
usbmuxd manages connections to iPhones and iPads over USB, used by Finder syncing, backups and developer tools.
Why is usbmuxd using CPU or memory?
It is active while a device is connected and syncing or backing up. Without a device it stays idle.
Can I stop usbmuxd?
No need; it does nothing without a device. Unplugging the iPhone stops its work.
iPhone backups taking up space covers what those backups leave on disk.
Common questions
Is usbmuxd safe on a Mac?
Yes. It is part of macOS. usbmuxd manages connections to iPhones and iPads over USB, used by Finder syncing, backups and developer tools..
Can I quit usbmuxd?
No need; it does nothing without a device.