How to Share Your Screen / Cast Display on macOS
Mirror or extend your screen to a TV, monitor, or video call.
Last verified: February 21, 2026
macOS uses AirPlay for wireless display sharing and is deeply integrated with Apple's hardware ecosystem, offering the smoothest experience when connecting to an Apple TV or an AirPlay 2 compatible smart TV. The Screen Mirroring option in Control Center lists all compatible receivers on the same network and typically connects within 2–3 seconds. macOS also supports using AirPlay as a second display (Sidecar mode for iPad), and newer Macs can receive AirPlay streams from iPhone and iPad as well as broadcast them.
Quick Steps
Follow in order for the fastest result.
- 1Click Control Center in the menu bar, select Screen Mirroring, and choose your AirPlay-enabled TV or Apple TV.
- 2Wait 5–10 seconds for the connection to establish and the display to mirror.
- 3Adjust display mode (Mirror vs Extend) in Display Settings after connecting if available.
Still Not Working?
Try these if the steps above didn't help.
- Both devices must be on the same Wi-Fi network — guest and main networks are isolated.
- Restart the casting receiver (Chromecast, Apple TV) and retry if the device does not appear in the list.
- Use a physical HDMI or USB-C to HDMI cable as a reliable fallback for presentations.
Verify the Fix
Confirm everything is fully working before closing this guide.
- Confirm the target screen duplicates your display in real time with acceptable lag.
- Test audio is routing to the TV speakers if expected.
Frequently Asked Questions
How do I cast my macOS screen to a TV?
Why can't I see my TV in the cast list on macOS?
Can I share only one app instead of the whole screen on macOS?
Does screen casting drain battery faster on macOS?
Same task, different device
Related guides for macOS
Take a Screenshot
Capture your full screen or a selected region using built-in shortcuts.
Record Your Screen
Start a native screen recording without installing third-party software.
Clear Cache
Remove cached data to fix loading errors and reclaim disk space.
Uninstall Apps
Remove apps you no longer use to free up storage and improve performance.