What is contactsd on Mac?
By Junaid, maker of Taskglass · Last reviewed
Manages your contacts database for the Contacts app and any app allowed to use contacts.
contactsd manages the information in your contacts database. It serves the Contacts app and other apps using the Contacts API, and performs background maintenance. Apps need your permission to read your contacts.
- Category
- Apple service
- Made by
- Apple
- Safe to quit:
- With care
Shown in Activity Monitor as contactsd
Why is contactsd using so much CPU or memory?
- Syncing a large address book from iCloud, Google or Exchange
- Background maintenance after a macOS update
- An app reading contacts repeatedly
What to do
- 1Let sync finish
- 2Check which apps have contacts access in System Settings > Privacy & Security > Contacts
- 3Restart your Mac
Safe to quit? With care.
macOS relaunches it; contacts may briefly not load in apps.
Related processes
Part of the Taskglass Process Library