The fastest way to send YouTube from your laptop to your TV

You can cast YouTube from your laptop to your TV using Chromecast, AirPlay (if you have an Apple TV), or built-in casting features on smart TVs. The method depends on what hardware you own. Most casting takes about 10 seconds once you start, and the video plays on your TV while you control it from your laptop.

The most common route is Chromecast, which works with any laptop and costs $30 to $50 for the device itself. You plug the Chromecast into an HDMI port on your TV, connect it to your WiFi network, and then use the Cast button in YouTube or your browser to send video to it. No subscription is needed—casting is built into YouTube for free.

Key Takeaways

  • Chromecast works with Windows, Mac, and Linux laptops and requires only a $30–$50 device plugged into your TV's HDMI port.
  • Smart TVs from Samsung, LG, Sony, and others have built-in casting receivers, so you may not need to buy anything if your TV is newer than 2016.
  • AirPlay casting works between Apple devices (MacBook and Apple TV) but not with Windows laptops or Android devices.
  • Your laptop and TV must be on the same WiFi network for casting to work; casting does not use your internet speed, only your local network.
  • Once you cast, your laptop screen does not have to stay on—you can close it, lock it, or use other apps while YouTube plays on your TV.

Setting up Chromecast for YouTube casting

Plug the Chromecast device into an available HDMI port on the back or side of your TV. Then plug the power cable into the Chromecast and into a wall outlet or USB port on your TV. Turn on your TV and switch to the HDMI input where you plugged in the Chromecast. You should see a setup screen appear on your TV.

On your laptop, open a web browser and go to google.com/chromecast/setup. Follow the on-screen steps to connect your Chromecast to your WiFi network. You will need to enter your WiFi password. Once the setup is complete, your Chromecast is ready to receive video from your laptop.

Make sure your laptop is connected to the same WiFi network as your Chromecast. Open YouTube in your browser or the YouTube app (if you have one installed). Look for the Cast button—it looks like a rectangle with a WiFi symbol in the corner. Click it, select your Chromecast from the list, and YouTube will start playing on your TV within a few seconds.

Casting from a smart TV with built-in receiver

Most smart TVs made after 2016 have a built-in casting receiver, which means you do not need to buy a Chromecast device. Samsung, LG, Sony, Hisense, and TCL TVs all support casting. Check your TV's manual or settings menu to confirm it has casting turned on.

On your laptop, open YouTube in your browser. Click the Cast button (the rectangle with a WiFi symbol). Your TV should appear in the list of available devices. Click your TV's name, and YouTube will begin playing on it. If your TV does not appear, make sure both devices are on the same WiFi network and that casting is enabled in your TV's settings.

The process is the same as Chromecast—you control playback from your laptop using the YouTube player, and you can pause, skip, or adjust volume from there. Your TV's remote will not control YouTube playback unless your TV has a YouTube app installed.

Using AirPlay if you have Apple devices

If you own a MacBook and an Apple TV, you can cast YouTube using AirPlay. This method does not work with Windows laptops, and it does not work with non-Apple TVs. Open YouTube in Safari (Apple's browser) on your MacBook. Click the AirPlay icon in the menu bar at the top of your screen—it looks like a triangle with a rectangle below it.

Select your Apple TV from the dropdown menu. YouTube will start playing on your TV, and you control it from your MacBook. AirPlay is faster and more stable than Chromecast for Apple users, but it requires both devices to be Apple products.

Troubleshooting when casting does not work

If the Cast button does not appear in YouTube, make sure you are using an updated browser. Chrome, Edge, Firefox, and Safari all support casting, but older versions may not. Refresh the YouTube page and try again. If you are using the YouTube app on your laptop, the Cast button should be visible in the top right corner of the app window.

If your TV does not appear in the Cast list, check that both your laptop and TV are connected to the same WiFi network. Some WiFi networks separate devices into "guest" and "main" networks—if your laptop is on one and your TV is on the other, they cannot find each other. Log into your router settings or ask your internet provider which network to use.

If casting starts but the video stops or buffers frequently, move your laptop closer to your WiFi router or TV. Walls, metal objects, and distance can weaken the WiFi signal. Casting does not use much bandwidth, so buffering usually means a weak connection between devices, not a slow internet connection.

If your Chromecast or smart TV is not responding, unplug it for 10 seconds and plug it back in. This resets the device and often fixes connection problems. Wait 30 seconds for it to restart before trying to cast again.

Casting from browser tabs instead of YouTube

You can also cast an entire browser tab to your TV, not just YouTube. This is useful if you want to watch YouTube through a website other than YouTube.com, or if you want to show other web content on your TV. Open any webpage in Chrome, Edge, or Firefox. Click the three-dot menu in the top right corner, look for Cast or Send to device, and select your TV.

Tab casting sends everything on that tab to your TV—video, audio, and any ads. Your laptop screen stays on while casting a tab, unlike casting YouTube directly, which lets you close your laptop. Tab casting is slower and uses more WiFi bandwidth than direct YouTube casting, so use it only when you need to show something that is not available through the YouTube app.

What to do if you do not have WiFi

Casting requires a WiFi network to work. If you do not have WiFi, you can use an HDMI cable to connect your laptop directly to your TV instead. Plug one end of an HDMI cable into your laptop's HDMI port (or USB-C port with an adapter) and the other end into your TV's HDMI port. Switch your TV to that HDMI input, and your laptop screen will appear on the TV. YouTube will play through this connection without needing WiFi.

HDMI cables are inexpensive (usually $10 to $20) and work with any laptop and TV. The downside is that your laptop must stay connected and positioned near your TV. Casting over WiFi is more convenient because your laptop can be anywhere in the room.

Frequently Asked Questions

Do I need a YouTube TV subscription to cast YouTube?

No. Casting YouTube videos to your TV does not require a YouTube TV subscription. You can cast regular YouTube videos, your own uploads, or playlists for free. YouTube TV is a separate paid service that gives you live TV channels—casting works the same way whether you have that subscription or not.

Can I use my phone to control YouTube while it is casting to my TV?

Yes. Once YouTube is casting to your TV, you can use your phone to control playback. Open YouTube on your phone, and you will see a Cast button. Tap it and select your TV. Your phone will then control the video playing on your TV, and you can pause, skip, or adjust volume from your phone instead of your laptop.

What happens if I close my laptop while YouTube is casting?

YouTube will keep playing on your TV. Closing your laptop, locking it, or switching to another app does not stop the cast. Your TV continues to receive the video stream directly from your WiFi network, not from your laptop. You can control playback using your TV remote (if your TV has a YouTube app) or by opening YouTube on your phone.

Can I cast YouTube to multiple TVs at the same time?

No. Each cast session sends video to one device only. If you want to play YouTube on two TVs, you would need to cast from two different laptops or phones, or use two separate Chromecast devices. Some smart TV systems allow multiple casting receivers in one home, but only one can receive at a time.

Is casting find, or can other people on my WiFi see what I am watching?

Casting is encrypted between your laptop and your TV, so other people on your WiFi network cannot see the video stream. However, they can see that a device is casting if they check your router's connected devices. If you are concerned about privacy, use a password-protected WiFi network and keep your WiFi password find.