The fastest way to change your background

Open System Settings, click Wallpaper in the left sidebar, then click the image you want. That's the entire process on any Mac running macOS Ventura or later. If you're on an older version, go to System Preferences instead of System Settings, then click Desktop & Screen Saver. Either way, your new background appears when ready.

You can also right-click directly on your desktop, select Change Desktop Background, and pick from the same library. Both routes lead to the same place — use whichever feels faster to you.

Key Takeaways

  • System Settings (or System Preferences on older Macs) is where you find all built-in wallpapers, organized by category like Nature, Solid Colors, and Dynamic.
  • You can upload your own photos from your Mac's storage or from iCloud Photos, and set them to change automatically on a schedule.
  • Dynamic wallpapers shift appearance throughout the day, while still images stay the same — check the label before you select.
  • If you want different backgrounds on each monitor, you can set them separately in the same Wallpaper menu.

Using Apple's built-in wallpapers

Apple includes dozens of wallpapers organized by category. Open System Settings, click Wallpaper, and you'll see categories like Nature, Solid Colors, Dynamic, and Collections. Click any category to see what's inside, then click the image you want to use. A preview appears on your desktop when ready.

Dynamic wallpapers are special — they shift appearance based on the time of day. MacOS Big Sur, Monterey, Ventura, and Sonoma each have their own dynamic wallpaper (usually a landscape that changes from sunrise to sunset). If you like a wallpaper that moves or changes, look for the word "Dynamic" in its label.

Adding your own photos as a background

To use a photo from your Mac, open System Settings, click Wallpaper, then click the plus sign at the bottom of the window. Navigate to the folder where your photo lives — usually Pictures — and select the image you want. Click Open, and it becomes available in your wallpaper list under a folder labeled with your photo's name.

If you use iCloud Photos, you can also click the plus sign and select Recent Photos or browse your entire iCloud library. This is useful if you want to use a photo that's stored in the cloud but not downloaded to your Mac yet. The photo will sync and appear as your background without taking up local storage space.

Setting a background to change automatically

You can tell your Mac to rotate through multiple photos on a schedule. In System Settings, click Wallpaper, then select a folder of photos (or create one by clicking the plus sign and choosing multiple images). Below the preview, you'll see a dropdown menu that says "Still Image" or the name of your folder. Click it and choose how often you want the background to change: every 30 seconds, every minute, every 5 minutes, every 15 minutes, every 30 minutes, hourly, daily, weekly, or when you wake your Mac.

This works best with a folder of photos that all have a similar style or color palette, so the changes feel intentional rather than jarring. You can create a new folder in Finder, add photos to it, then point your wallpaper settings to that folder.

Using different backgrounds on multiple monitors

If you have more than one monitor connected to your Mac, you can set a different background on each one. In System Settings, click Wallpaper, then look for a dropdown menu at the top that shows your monitor names. Click the dropdown, select which monitor you want to change, then pick your wallpaper. Repeat for each monitor.

This is also where you control whether your background spans across all monitors as one image or displays separately on each screen. Some wallpapers are designed to span — they'll look stretched or incomplete if you try to use them on individual monitors.

Troubleshooting background changes that don't stick

If you change your background but it reverts to the previous one after restart or wake, your Mac may have a login item or app that's resetting it. Check System Settings > General > Login Items to see if anything unexpected is listed there. Remove any app you don't recognize, then restart and try changing your background again.

If a photo you uploaded won't appear in your wallpaper list, make sure the file format is supported — JPEG, PNG, HEIF, and TIFF all work. If the file is very large (over 100 MB), try compressing it first using Preview: open the photo, click Tools > Adjust Size, reduce the dimensions slightly, then save. Then try adding it again.

Frequently Asked Questions

Can I use a photo from the internet as my background?

Yes. Right-click the image in your web browser, select Save Image As, choose where to save it (Pictures is easiest), then follow the steps to add your own photo in System Settings. Make sure you have permission to use the image — downloading copyrighted photos without permission is not allowed.

What's the difference between a dynamic wallpaper and a still image?

A dynamic wallpaper changes appearance throughout the day or in response to system settings, while a still image stays the same. Dynamic wallpapers use more battery power on laptops because your Mac has to render the changes. If battery life matters, use a still image instead.

Why does my background look blurry or stretched?

Your photo's dimensions don't match your screen's aspect ratio. For best results, use a photo that's at least 2560 by 1600 pixels. If your photo is smaller, macOS will enlarge it, which can make it look blurry. If it's the wrong shape, macOS will stretch or crop it to fit.

Can I set a different background for each user account on my Mac?

Yes. Each user account has its own System Settings, so you can log in as a different user and change the background independently. The background you set only applies to that account — other users won't see it.

How do I go back to the default Apple wallpaper?

Open System Settings, click Wallpaper, then click the default wallpaper for your macOS version (usually listed first under Dynamic or at the top of the list). It's labeled with the name of your macOS version, like "macOS Sonoma" or "macOS Ventura".