The fastest way to change your Mac's background

Open System Settings, click Wallpaper in the sidebar, then select a new image from the gallery or click the plus sign to upload your own. The change takes effect immediately. If you have multiple displays, you can set different backgrounds for each one.

The whole process takes under a minute. You do not need to restart your Mac or use any third-party tools — everything you need is built into macOS.

Key Takeaways

  • System Settings > Wallpaper is the only place you need to go; the old Desktop & Screen Saver preference pane no longer exists on newer Macs.
  • You can choose from Apple's built-in image collections, use a photo from your own files, or set a solid color as your background.
  • If you have an external monitor, you can assign different backgrounds to your Mac's display and the external display separately.
  • Your background choice syncs across your Mac if you use iCloud, so the same image appears when you log in on a different Mac with the same Apple ID.

Finding System Settings and the Wallpaper option

Click the Apple menu in the top-left corner of your screen, then select System Settings. On older Macs running Big Sur or earlier, this was called System Preferences, but the location is the same.

Once System Settings opens, look for Wallpaper in the sidebar on the left. Click it. If you do not see Wallpaper in the sidebar, scroll down — it appears below Display and other appearance options on most Macs.

Choosing from Apple's built-in collections

When you open the Wallpaper pane, you see thumbnails of image collections organized by category: Dynamic, Light, Dark, Nature, Landscapes, and others. Each collection contains multiple images you can preview by hovering over them.

Click any image to set it as your background immediately. If you want to see the full collection before deciding, click the collection name itself to expand it and see all available options. Some collections, like Dynamic, change throughout the day based on the time of day.

Using your own photos as a background

To use a photo from your Mac instead of Apple's images, click the plus sign button at the bottom of the Wallpaper pane. A file browser opens. Navigate to the folder containing your photo — usually Pictures, Downloads, or a custom folder where you store images.

Select the image you want and click Choose. The photo becomes your background immediately. You can repeat this process to add multiple personal photos to your wallpaper options, and they will appear in a "Recents" section at the top of the Wallpaper pane for quick access later.

Setting different backgrounds for multiple displays

If you have an external monitor connected to your Mac, the Wallpaper pane shows separate sections for each display. The display labeled "Built-in" or with your Mac's name is your laptop or desktop screen. Any external monitors appear as separate options below it.

Click the display you want to change, then select a new background for that screen only. Your Mac remembers each display's background separately, so when you disconnect and reconnect an external monitor, it returns to the background you assigned it.

Solid colors and other background options

If you prefer a plain background instead of an image, scroll to the bottom of the Wallpaper pane and click Colors. A palette of solid colors appears. Click any color to apply it to your desktop immediately.

You can also create a custom color by clicking the color wheel icon if your Mac supports it. This opens a color picker where you can select any shade you want. Solid backgrounds use less system resources than images, which can be useful on older Macs.

Troubleshooting background changes that do not appear

If you change your background but the old image still appears, try logging out and back in. Click the Apple menu, select Log Out [Your Name], then log back in with your password. Your new background should appear on the login screen and desktop.

If you are using iCloud and the background does not sync to another Mac with the same Apple ID, check that both Macs are signed into the same iCloud account. Open System Settings > [Your Name] > iCloud on each Mac and confirm that both are logged in. You can also manually set the background on the second Mac if the sync is delayed.

Frequently Asked Questions

Can I use a video or animated image as my background?

No, macOS only supports still images as backgrounds. However, some collections like Dynamic do change throughout the day, which creates a similar effect. Third-party apps exist that can display animated backgrounds, but they require installation and may use more battery power.

What image formats does macOS accept for custom backgrounds?

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

Will changing my background affect my Mac's performance?

No. Static images have no measurable impact on performance. Dynamic backgrounds use slightly more resources than static ones, but the difference is negligible on modern Macs. Older Macs may see a tiny battery drain from Dynamic backgrounds, so use a static image if battery life is a concern.

Can I schedule my background to change at specific times?

macOS does not have a built-in scheduler for background changes. Dynamic collections change automatically based on time of day, but you cannot set custom schedules. Third-party apps like Patterned or Kaleidoscope offer scheduling features if you need this functionality.

What happens to my background if I update macOS?

Your custom background choice is preserved during macOS updates. If you used one of Apple's built-in images, it remains your background after the update. If that image was removed in the new version, macOS defaults to a standard wallpaper, but you can change it back immediately.