The fastest way to change your Mac desktop background

Open System Settings, click Wallpaper in the left sidebar, then click the Desktop tab and choose an image. That's the complete process on any recent Mac. You can use Apple's built-in images, a photo from your own library, or a solid color. The change takes effect when ready.

If you're running an older version of macOS (before Sonoma), the steps are slightly different but just as straightforward — you'll go to System Preferences instead of System Settings, and the Wallpaper option sits under the Desktop & Screen Saver section. Either way, you don't need to restart your Mac or use any third-party tools.

Key Takeaways

  • Open System Settings, select Wallpaper, then the Desktop tab to reach the background image picker on any current Mac.
  • You can choose from Apple's included wallpapers, upload your own photos, or set a solid color as your background.
  • Changes appear when ready on your desktop without requiring a restart.
  • If you have multiple displays, you can set different backgrounds for each one from the same menu.
  • Older Macs running pre-Sonoma versions use System Preferences instead of System Settings, but the process is nearly identical.

Using Apple's built-in wallpapers

Apple includes dozens of wallpapers with every Mac — landscapes, abstract designs, colors, and seasonal images. To browse them, open System Settings, click Wallpaper, then click the Desktop tab. You'll see thumbnails of available images organized by category: Dynamic, Light, Dark, Nature, Landscapes, and others.

Click any image to preview it on your desktop. If you like it, it's already set as your background. If you want to see another one, just click a different thumbnail. Dynamic wallpapers change throughout the day to match the time of day, which some people find natural and others find distracting — you can turn that off by unchecking the "Change picture" option if you want the wallpaper to stay the same all day.

Adding your own photos as a background

To use a photo from your Mac, open System Settings, click Wallpaper, then click the Desktop tab. At the bottom of the window, you'll see a folder icon or a plus sign (depending on your macOS version). Click it to browse your Mac's files. Navigate to the folder where your photo lives — usually Pictures — and select the image you want.

Once you select a photo, it appears as a new option in your wallpaper list. You can add as many of your own images as you want, and they'll stay in that list for future use. If you want to remove a custom wallpaper you added, right-click it in the list and select Delete.

Setting different backgrounds for multiple displays

If your Mac is connected to an external monitor, you can set a different background for each display. Open System Settings, click Wallpaper, then click the Desktop tab. You'll see a dropdown menu at the top that says "Displays" or shows the name of your current display. Click it to switch between your Mac's built-in screen and any external monitors.

Choose your background for the first display, then switch to the next display in that dropdown and choose a different one. Each display remembers its own background independently, so you can customize them however you want.

Using a solid color instead of an image

If you prefer a plain background, you can set your desktop to a solid color. Open System Settings, click Wallpaper, then click the Desktop tab. Look for a "Colors" or "Solid Colors" section in the wallpaper list — it's usually near the top. Click any color swatch to set it as your background.

Solid colors load faster than images and can make your desktop feel cleaner. You can also create a custom color by clicking the color picker option, which lets you choose any shade you want using a color wheel or by entering specific color values.

Troubleshooting when your background won't change

If you change the wallpaper but it doesn't appear, try restarting your Mac — it's rare, but sometimes the display needs to refresh. If you're using a photo you just added and it still doesn't show up, make sure the image file is in a format your Mac recognizes: JPEG, PNG, HEIF, and TIFF all work. Very large image files sometimes cause delays, so if your photo is several hundred megabytes, try resizing it first.

If you're on an older Mac and System Settings doesn't have a Wallpaper option, you're likely running an older version of macOS. Go to System Preferences instead, click Desktop & Screen Saver, then click the Desktop tab. The process is the same from there. If you're unsure which version you're running, click the Apple menu in the top-left corner and select About This Mac.

Frequently Asked Questions

Can I set a different background for each Space or virtual desktop?

No, your Mac applies the same background to all Spaces. Each display can have its own background if you have multiple monitors, but within a single display, all Spaces share the background you set in System Settings.

What image formats does Mac support for wallpapers?

Mac accepts JPEG, PNG, HEIF, TIFF, and GIF files as wallpapers. Most photos you take or read are already in one of these formats, so you usually won't need to convert anything.

Will changing my wallpaper affect my login screen background?

No, your login screen uses a separate background. The wallpaper you set in System Settings only affects your desktop after you log in. You cannot change the login screen background on most Macs without using third-party tools.

Can I schedule my wallpaper to change automatically?

Yes, if you use a Dynamic wallpaper, it changes throughout the day automatically. If you want a custom schedule with your own photos, you'll need a third-party app — macOS doesn't have a built-in option to rotate through your personal images on a timer.