DeviceHowTo
Chromebook⏱ 4 min

How to Share Your Screen / Cast Display on Chromebook

Mirror or extend your screen to a TV, monitor, or video call.

Last verified: February 21, 2026

Chromebook is built on Chrome OS, which makes casting to Chromecast devices unusually seamless — the same casting engine that powers the Chrome browser tab casting works at the system level here. You can cast the entire desktop, a specific Chrome tab (which uses less bandwidth), or just media content within supported web apps depending on your needs for the task. Since Chromebook runs Chrome natively, any website or web app with a cast button will behave identically to casting from a full Chrome browser on Windows or Mac.

Quick Steps

Follow in order for the fastest result.

  1. 1Click the system tray clock, select Cast, and choose your Chromecast or Miracast display.
  2. 2Wait 5–10 seconds for the connection to establish and the display to mirror.
  3. 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.

Verify the Fix

Confirm everything is fully working before closing this guide.

Frequently Asked Questions

How do I cast my Chromebook screen to a TV?
Click the launcher or system tray area and select Cast, then choose your Chromecast from the detected devices.
Why can't I see my TV in the cast list on Chromebook?
The most common cause is that the two devices are on different networks — for example, your device is on a 5 GHz band and the TV is on 2.4 GHz, or one is on a Guest network. Ensure both are on the exact same Wi-Fi network. Also restart both the casting device and the receiver.
Can I share only one app instead of the whole screen on Chromebook?
Full-screen casting is standard. Use in-app sharing controls within supported streaming apps for content-only casting.
Does screen casting drain battery faster on Chromebook?
Yes — wireless casting keeps the display on, Wi-Fi active, and the GPU encoding continuously, which increases battery drain noticeably. For extended sessions, keep the device plugged in.

Same task, different device

Windows 11Windows 10macOSiPhone (iOS)iPad (iPadOS)Samsung GalaxyGoogle Pixel

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