We write a lot of stories here at PCMag meant to help you with your computers and smartphones. To do that, we have to show you what’s on the screens of those devices—a lot. Capturing these images—interchangeably called screenshots, screen captures, or screen grabs—is just an everyday part of what we do.

But taking screenshots isn’t the norm for everyone. In fact, there may be some of you out there who aren’t even aware you can do it. But it’s easy.

If you need to take a screenshot (or 20), this is the tutorial you need. We run down everything you need to know about capturing screenshots, no matter the platform—Windows, macOS, ChromeOS, iOS, Android, and other mobile operating systems.

Most of the tips require nothing more than the operating system itself—they’ve all got built-in methods of capturing a screen. However, there are a wealth of third-party software tools that will take your screen-grab game up a notch. We’ll even show you some of the tools that make it simple to take an image within the Web browser, which is arguably the most used software on any PC anyway.

Screenshots on Smartphones

You probably take a lot of pictures with your smartphone, but you can also take a picture of what’s already on the screen. The tools to do so are built right in.

How to Take a Screenshot on Android

Google’s smartphone operating system, Android, has built-in screenshot options if you have Android 4.0 or later. Hold the power button and volume down for one or two seconds. The screen will flash white, and the image is saved to your photo gallery.

The problem is, that doesn’t always work. Since Google…

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