The fastest way to change your background

Open System Settings, click Wallpaper in the left sidebar, then click the Desktop tab. Choose a category — Apple, Collections, or Photos — and click any image to set it as your background. The change happens when ready. If you want to use your own photo instead, click the plus sign at the bottom, navigate to your image file, and click Open.

That is the standard path. But there are two other ways to do it that are faster in specific situations: dragging an image directly to your desktop, or right-clicking an image in your web browser and setting it as your background without opening System Settings at all.

Key Takeaways

  • System Settings > Wallpaper > Desktop is the main way to change your background, and you can choose from Apple's built-in images or upload your own photos.
  • You can drag an image file from Finder directly onto your desktop to set it as your background without opening any settings.
  • Right-clicking an image in Safari or another browser and selecting "Set Desktop Picture" skips System Settings entirely.
  • If you have multiple displays, you can set different backgrounds on each one from the same Wallpaper menu.
  • macOS will automatically switch between light and dark versions of your background depending on whether you have Light or Dark mode turned on.

Using System Settings to pick from Apple's images

Click the Apple menu in the top left corner, then select System Settings. In the sidebar on the left, find and click Wallpaper. You will see three tabs at the top: Desktop, Lock Screen, and Screen Saver. Make sure Desktop is selected.

The main area shows categories: Apple, Collections, and Photos. Click any category to see the images inside. Apple contains macOS's built-in backgrounds — mountains, beaches, abstract designs, and others. Collections groups them by theme. Photos shows images from your own photo library. Click any image once to preview it, then click it again to set it as your background.

If you want to use a photo that is not in your library yet, click the plus sign at the bottom of the window. A file browser opens. Navigate to the folder where your image is saved, click the image, and click Open. It will be added to your Photos section and set as your background at the same time.

Dragging an image from Finder to your desktop

If you have a photo or image file on your Mac, you can set it as your background without opening System Settings at all. Open Finder and navigate to the folder where the image is stored. Right-click the image file and select Set Desktop Picture from the menu that appears.

Alternatively, you can drag the image directly from Finder onto your desktop. Hold down the mouse button on the image, drag it to an empty area of your desktop, and release. The image will be set as your background when ready. This method is the fastest if you already have Finder open.

Setting a background from a web image

When you find an image in Safari or another web browser that you want to use as your background, you do not need to read it first. Right-click the image and look for an option like "Set Desktop Picture" or "Use as Desktop Picture" (the exact wording depends on your browser). Click that option, and the image is set as your background right away.

This works in Safari, Chrome, Firefox, and most other browsers. The image is downloaded to your Mac automatically and stored in your Wallpapers folder, so you do not have to manage it yourself. If you later want to remove it or see where it is stored, you can find it in System Settings under Wallpaper > Photos.

Setting different backgrounds for multiple displays

If you have an external monitor or a second display connected to your MacBook, you can set a different background on each one. Open System Settings and click Wallpaper. At the top of the window, you will see a thumbnail for each display. Click the thumbnail for the display you want to change, then choose your background image. Repeat for each display.

This is useful if you use an external monitor as your main workspace and want a different look on each screen. The settings are saved separately, so changing one display's background does not affect the other.

Understanding light and dark mode backgrounds

Many of Apple's built-in backgrounds have two versions: one for Light mode and one for Dark mode. When you set one of these images as your background, macOS automatically switches between the two versions depending on your appearance setting. If you switch your Mac to Dark mode, the background will change to match without you doing anything.

If you use your own photo as a background, it will stay the same regardless of whether you are in Light or Dark mode. Some photos look better in one mode than the other, so you might want to choose a background that works well in whichever mode you use most often.

Changing your lock screen background separately

Your lock screen — the image you see before you enter your password — can have a different background than your desktop. In System Settings > Wallpaper, click the Lock Screen tab instead of Desktop. The process is the same: choose from Apple's images, Collections, Photos, or upload your own. You can set them independently, so your lock screen and desktop can look completely different.

Some people prefer a straightforward, clean lock screen background and a more detailed or personal image on their desktop. Others use the same image on both. The choice is yours, and you can change either one at any time without affecting the other.

Frequently Asked Questions

Can I set a video or animated background on my MacBook?

No. macOS only supports still images as backgrounds on your desktop. However, you can set a video as your screen saver, which plays when your Mac is idle. Go to System Settings > Wallpaper > Screen Saver to set that up.

What image formats work as backgrounds?

JPEG, PNG, HEIF, and TIFF files all work. Most photos from your camera or phone are in one of these formats already. If you have an image in a different format, you can convert it using Preview or an online converter before setting it as your background.

Why does my background look blurry or stretched?

This usually happens when the image is much smaller than your screen resolution. macOS stretches small images to fill the screen, which makes them look blurry. Use an image that is at least as wide and tall as your display's resolution for the sharpest result.

Can I schedule my background to change at a certain time?

Not directly through System Settings. However, you can set up a folder of images in System Settings > Wallpaper and enable the option to change your background periodically — every hour, day, or week. macOS will cycle through the images on that schedule automatically.

Will changing my background affect my Mac's performance?

No. Your background image uses a small amount of storage space, but it does not slow down your Mac or drain your battery. You can change it as often as you want without any performance impact.