Share screens using Messages on Mac
When you’re having a conversation with someone in Messages, you can share your screen with them, or they can share theirs with you. It’s a great way to work together on a project or help a friend do something on their computer.
Share a screen
In the Messages app on your Mac, send a message to the person you want to share with, then click Details.
You can’t send a message to someone who’s restricted by communication limits in Screen Time.
Click the Screen Share button , then do one of the following.
Share your screen: Choose Invite to Share My Screen.
View your friend’s screen: Choose Ask to Share Screen.
When the screen-sharing request is accepted, an audio call begins automatically (so you can talk while you work) and the Screen Sharing app opens. For information about using the Screen Sharing app, see Share the screen of another Mac.
To stop screen sharing, do one of the following:
If you’re sharing your screen: Click the Screen Sharing button in the menu bar, then choose End Screen Sharing. (If you’re not ready to stop yet, choose Pause Screen Sharing; choose it again to resume sharing.)
If you’re viewing your friend’s screen: Choose Screen Sharing > Quit Screen Sharing.
Tip: Don’t want someone to send you screen-sharing invitations? When you receive an invitation from them, hold the pointer over the Decline button, click the down arrow, then click Block.