Are you tired of squinting at a small screen during presentations or struggling to share your screen with a group of people? The solution might be right in front of you with a Chromecast!
This versatile device can mirror your compatible apps and screen onto your TV, making it a great option for displaying an app or website for all to see.
But can Chromecast act as a second monitor?
Yes and no. Technically, you can only duplicate, not extend your screen using your Chromecast. But depending on what you need, it can act as a second monitor.
In this piece, we’ll explore some practical use cases that will make you eager to try this feature.
Read through to the end of this piece, and we’ll reveal how you can extend your screen to a second monitor without relying on a Chromecast.
Quick Navigation
Some Use Cases To Make Chromecast Act as a Second Monitor
Now that you know Chromecast can somewhat act as a second monitor. Want to boost your productivity and make the most of it?
With Chromecast, you can cast your favorite videos, tutorials, or movies onto your TV while working on something else on your computer.
For example, you can cast a Youtube tutorial video onto the Chromecast in one tab while working on another.
Or, you can cast your favorite movie from Netflix onto your Chromecast in one tab while browsing newsfeeds or chatting with friends on another tab.
Want to work on a document while keeping an eye on your work? No problem! Simply cast one tab with the document and the work on another. The possibilities are endless!
The best part? You don’t need to manipulate the app or tab you’re casting, just view it on your TV while working on something else.
How To Cast a Google Chrome Tab or the Entire Screen to Chromecast?
Looking to cast your Google Chrome tab or entire screen to Chromecast? It’s easier than you think! All you need to do is to follow our guidelines:
- First, make sure that both your Chromecast and computer are connected to the same Wi-Fi network.
- Then, simply click the kebab menu on Google Chrome and choose Cast.
- Select your Chromecast, and then choose whether you want to Cast tab or Cast screen from the Sources menu.
- If you’ve already connected your laptop to another display, you’ll be prompted to choose which screen to cast.
- Once you’ve made your selection, click Share and start enjoying your content on the big screen!
With Chromecast, you can make use of the cast feature in Google Chrome to easily mirror your laptop/PC onto your TV, making it a great assistant as a second monitor for displaying a tab or the whole screen.
How To Cast From Youtube to Chromecast
Looking to use Chromecast as a second monitor to enjoy your favorite YouTube videos on the big screen while working on something else?
The process is simple! Follow our step-by-step instructions below, and you’ll be casting your YouTube videos in no time:
- First, ensure that both your Chromecast and computer/smartphone are connected to the same Wi-Fi network.
- Once you’ve confirmed that, open the Youtube video you want to cast and click the Cast icon on the video bar.
- From there, select your Chromecast from the list of available devices and start watching your content on the big screen.
With just a few simple steps, you can now easily cast your favorite tutorial videos onto Chromecast while taking notes on your computer, making it an ideal choice for enhancing your learning experience.
Alternative Method: Extend or Duplicate Your Screen (Without Chromecast)
Feeling limited by Chromecast’s screen duplication feature and ready to take your screen extension game to the next level?
Don’t worry, we’ve got you covered with an alternative method that will help you extend your screen, and literally make your TV a second monitor without any restrictions.
First, have both your TV and computer connected to the same Wi-Fi network and follow these simple steps to check if your TV is compatible with Miracast (Windows OS) or Screen Mirroring (Mac OS).
You’ll know whether your TV is compatible or not if your laptop/PC can find it.
Miracast in Windows OS (10 and 11)
For Windows OS (10 and 11), press Window + K to open the device list.
Then, choose the smart TV you want to cast onto and press Window + P to select Extend. Now, you can take it to a whole new level, not just duplicate or mirror your laptop’s/PC’s screen.
Screen Mirroring in Mac OS
For Mac OS, navigate to Control Center on the menu bar, select the Screen Mirroring icon, and then choose your TV.
Enter the PIN code that appears on the TV (if any), and then choose either Mirror Built-in Display (duplicate) or Use As Separate Display (extend).
With this alternative method, you can still enjoy the benefits of extending or duplicating your screen without Chromecast.
Conclusion
In conclusion, Chromecast can be a useful tool for using your TV as a second monitor to support your productivity and display your content on a larger screen.
While it can technically only duplicate your screen, Chromecast is still a great option for displaying an app or website for all to see.
By following the simple steps outlined above, you can easily cast your compatible apps and screen onto your TV using Chromecast and use it as a second monitor.
This makes Chromecast an ideal choice for anyone looking to enhance their productivity and entertainment experience.
If you wanted to extend your screen without any limitations, we also provided you with alternative methods that can help you achieve that goal.
We want to hear from you! Did you know how to use Chromecast as a second monitor?
Share your thoughts in the comments section below!

Yesenia Achlim is a technical copywriter and editor with a focus on AV equipment. She aims to break down complicated topics and make technology accessible, no matter your technical expertise. When she’s not teaching you how to replace a projector lamp, you can find her reading and baking.