Casting from Chrome to a Chromecast device works through a built-in menu that takes about three clicks

To cast from Google Chrome, open the browser menu (three vertical dots in the top right), select Cast, choose your Chromecast device from the list, and the content on your screen will appear on your TV. The whole process takes less than a minute once your Chromecast is set up and connected to the same Wi-Fi network as your computer.

You do not need an extension or special software. The Cast feature is built into Chrome on Windows, Mac, and Linux. Your Chromecast device must be powered on and connected to your home Wi-Fi network before you start.

Key Takeaways

  • Open the Chrome menu, select Cast, and pick your device from the list that appears.
  • Your computer and Chromecast must be on the same Wi-Fi network for casting to work.
  • You can cast an entire tab, a window, or your whole desktop depending on what you want to share.
  • Casting pauses automatically when you close the Cast menu or disconnect, so your TV will not stay on the content you were viewing.
  • If your Chromecast does not appear in the Cast menu, restart both devices and check that they are connected to the same network.

Step-by-step: casting a Chrome tab to your TV

Open Google Chrome and navigate to the website or content you want to cast. Click the menu button (three vertical dots) in the top right corner of the browser window. Scroll down and select Cast from the dropdown menu.

A small window will pop up showing available Chromecast devices on your network. Click the device you want to cast to. Your browser tab will now display on your TV, and you will see a blue Cast icon in the Chrome address bar to show that casting is active.

While casting, you can continue to use Chrome on your computer normally. Anything that plays in that tab will appear on your TV. To stop casting, click the Cast icon in the address bar and select Stop casting.

Casting your entire desktop or a specific window

If you want to share more than just a single tab—for example, to show a presentation from another program or to display your whole screen—use the Cast menu's other options. Open the Cast menu the same way (menu button, then Cast), but instead of selecting a device right away, look for the dropdown that says Cast tab.

Click that dropdown to see your options: Cast tab, Cast window, or Cast entire screen. Choose the option that matches what you want to share. Casting your entire screen will show everything on your desktop, including notifications and other windows. Casting a window lets you pick one specific program to share while keeping other windows private.

Troubleshooting when your Chromecast does not appear

If you open the Cast menu and your Chromecast device is not listed, the most common cause is that your computer and the device are not on the same Wi-Fi network. Check that both are connected to the same network name (SSID). Some homes have separate 2.4 GHz and 5 GHz networks; Chromecast devices work best on 2.4 GHz, so if your computer is on 5 GHz only, switch it temporarily.

Restart both your computer and your Chromecast device. Unplug the Chromecast for 10 seconds, plug it back in, and wait for it to fully boot (the light will stop blinking). Then try opening the Cast menu again. If the device still does not appear, restart your Wi-Fi router as well and wait a few minutes for all devices to reconnect.

If you are still not seeing the device, check that Chrome is up to date. Open the Chrome menu, go to Help, then About Google Chrome. Chrome will check for updates automatically and install them if available. Close and reopen Chrome after updating, then try casting again.

What happens to audio when you cast

When you cast a tab or window, audio plays through your TV speakers by default, not through your computer. This is useful for watching videos or listening to music, but it means you cannot mute the TV and hear sound only on your computer. If you want to hear audio on your computer instead, you will need to mute your TV or use a different casting method.

If you are casting your entire desktop and want to control which device plays audio, you can adjust this in your computer's sound settings. On Windows, right-click the volume icon in the taskbar and select Open Volume mixer. On Mac, go to System Preferences, then Sound, and choose your output device. However, for most casting situations, letting the TV handle the audio is the simplest approach.

Casting from Chrome on a mobile device

Chrome on Android phones and tablets has a Cast feature as well. Open Chrome, navigate to the content you want to cast, tap the menu button (three vertical dots), and select Cast. The process is the same as on a computer: pick your device from the list and the content will appear on your TV.

On iPhone and iPad, Chrome does not have a built-in Cast button. Instead, you can use AirPlay to cast to an Apple TV, or use the casting feature built into other apps like YouTube or Google Photos. If you want to cast general web content from an iPhone, you will need to use a different browser or casting method.

Why casting stops when you close the Cast menu

Casting is not a permanent connection like connecting a cable. It is an active stream that continues only while Chrome is running and the Cast menu is open. If you close the Cast menu window, casting will stop and your TV will go blank or return to its previous input. This is by design—it prevents accidental casting and gives you control over when content appears on your TV.

To keep casting active while you do other things on your computer, leave the Cast menu window open in the background. You can minimize it or move it to the side. As long as the window is open and your computer stays on, the cast will continue.

Frequently Asked Questions

Can I cast to multiple Chromecast devices at the same time?

No. Chrome allows you to cast to only one device at a time. If you want to cast to a second device, you must stop casting to the first one, then open the Cast menu and select the new device. Some Chromecast devices have a feature called Guest Mode that lets other people cast to the same device without being on your Wi-Fi network, but you still cannot cast to multiple devices simultaneously from one browser.

Does casting use a lot of internet bandwidth?

Casting uses your Wi-Fi network, not your internet connection directly. The data travels between your computer and Chromecast over your local network. However, if you are casting video content that streams from the internet (like YouTube or Netflix), that content still needs internet bandwidth. Casting a local file or a website uses much less bandwidth than streaming video.

Can I cast while my computer is locked or asleep?

No. Your computer must be awake and unlocked for casting to work. If your computer goes to sleep, the cast will stop. You can adjust your computer's sleep settings to prevent it from sleeping while you are casting, but you cannot lock the screen and keep casting active.

What if my Chromecast keeps disconnecting during casting?

Disconnections usually mean your Wi-Fi signal is weak or unstable. Move your Chromecast closer to your router, or move your router closer to your TV. Check that no other devices are using a lot of bandwidth. If the problem continues, restart your router and Chromecast, and make sure your Chromecast firmware is up to date through the Google Home app.

Can I cast from Chrome in incognito mode?

Yes. Incognito mode does not prevent casting. The Cast feature works the same way in incognito tabs as it does in regular tabs. Your casting history will not be saved, but the cast itself will work normally.