What is CptHost (Zoom) on Mac?
By Junaid, maker of Taskglass · Last reviewed
Zoom's screen-sharing host process, used when you share your screen.
CptHost is a helper app bundled inside Zoom (in zoom.us.app's Frameworks folder) that's associated with Zoom's screen sharing. It's active while you share your screen. If you find a CptHost outside Zoom's app folder, treat it with suspicion and check where it lives.
- Category
- Third-party
- Made by
- Zoom Communications
- Safe to quit:
- With care
Shown in Activity Monitor as CptHost
Why is CptHost (Zoom) using so much CPU or memory?
- Sharing your screen, especially with video or animation on it
- Sharing a high-resolution display
What to do
- 1Stop screen sharing when finished
- 2Share a single window instead of the whole screen
- 3Quit Zoom fully after the meeting
Safe to quit? With care.
Quitting it stops screen sharing in your current meeting.
Related guides
Related processes
Part of the Taskglass Process Library