Change your wallpaper through System Settings

Open System Settings on your Mac — click the Apple menu in the top-left corner, then select System Settings. In the sidebar on the left, click Wallpaper. You will see your current wallpaper displayed in the main window, along with thumbnail previews of other options below it.

Click any wallpaper thumbnail to preview it on your screen. The change happens instantly. Once you find one you like, that's it — your wallpaper is set. There's no separate save or confirm button. If you change your mind, just click a different wallpaper and it updates right away.

If you want to use your own photo instead of Apple's built-in options, scroll down past the thumbnails and click Add Folder or Add Photos. Navigate to the folder or photo you want, select it, and click Open. Your photo will appear as an option you can click to set as your wallpaper.

Key Takeaways

  • Open System Settings, click Wallpaper in the sidebar, and click any thumbnail to set it as your wallpaper instantly.
  • Your wallpaper changes immediately when you click — there is no save step or confirmation dialog.
  • You can add your own photos by clicking Add Folder or Add Photos and selecting the image you want to use.
  • Different wallpapers may appear on your lock screen and desktop, and you can set them separately in the same Wallpaper settings.
  • If your wallpaper looks blurry or stretched, your image resolution may be too low for your display size.

Set different wallpapers for your lock screen and desktop

By default, your Mac may use the same wallpaper for both your lock screen (the screen you see before you log in) and your desktop (the screen behind your open windows). You can set them to different images if you prefer.

In the Wallpaper settings, look for the tabs or options at the top that say Lock Screen and Desktop. Click Lock Screen first, choose a wallpaper, then click Desktop and choose a different one. Each setting saves independently, so you can mix and match however you want.

Use dynamic or color wallpapers

Apple includes several types of wallpapers beyond static photos. Dynamic wallpapers change throughout the day to match the time of day — they might show a landscape at sunrise, midday, and sunset. Color wallpapers are solid colors or subtle gradients that use less processing power.

Both types appear in your wallpaper thumbnails in System Settings. Click any thumbnail to see what type it is — the preview will show you if it's dynamic (it will animate slightly) or a solid color. They work the same way as regular wallpapers: click once to set it.

Troubleshoot wallpaper that looks blurry or stretched

If your wallpaper appears blurry, pixelated, or stretched oddly across your screen, the image resolution is usually too low for your display. Your Mac is enlarging a small image to fit a larger screen, which makes it look fuzzy.

To fix this, use a higher-resolution image. If you're adding your own photo, check its dimensions before you set it — your image should be at least as wide and tall as your display resolution. You can find your display resolution by opening System Settings, clicking Displays in the sidebar, and looking at the resolution listed there. Search for a photo or wallpaper that matches or exceeds those dimensions.

If you're using one of Apple's built-in wallpapers and it looks blurry, try a different one — some older wallpapers have lower resolution than newer ones. The dynamic and color wallpapers typically look sharp because they're generated at your display's native resolution.

Reset to the default wallpaper

If you want to go back to the wallpaper your Mac came with, open System Settings, click Wallpaper, and look for the thumbnail labeled Big Sur, Monterey, Ventura, or Sonoma depending on which version of macOS you're running. These are the default wallpapers that shipped with your system. Click it to restore it.

You can find your macOS version by clicking the Apple menu and selecting About This Mac if you're not sure which default wallpaper to look for.

Remove a wallpaper folder you added

If you added a folder of photos to your wallpaper options and want to remove it, open System Settings and click Wallpaper. Hover your mouse over the folder thumbnail you want to remove — a small X button will appear in the corner. Click the X to delete that folder from your wallpaper options.

Removing a folder from wallpaper settings does not delete the photos from your computer — it only removes them from the list of wallpaper choices. Your photos stay in their original location.

Frequently Asked Questions

Can I set a different wallpaper for each monitor if I have multiple displays?

Yes. In System Settings, click Wallpaper, then look for tabs or buttons at the top that let you choose which display you're setting. Select one display, choose a wallpaper, then switch to the other display and choose a different one. Each monitor remembers its own wallpaper independently.

Why does my wallpaper change back to the default after I restart?

This usually happens if the photo you chose is stored on an external drive or a location your Mac can't access at startup. Move your photo to your Pictures folder or another location on your Mac's main drive, then set it as your wallpaper again. Built-in wallpapers never have this problem because they're stored on your system.

Can I use a video as my wallpaper?

No. macOS only supports still images and dynamic wallpapers (which are Apple's own animated images). You cannot set a video file or GIF as your wallpaper. Your best option is to use a dynamic wallpaper if you want movement, or take a screenshot from the video and use that as a still image.

What image format should I use for my own wallpaper?

JPG, PNG, and HEIF formats all work. Most photos from your camera or phone are already in one of these formats. If you're unsure, right-click the photo, select Get Info, and look at the Kind field to see what format it is. If it's something else, you can convert it using Preview or an online converter.

Does changing my wallpaper use more battery on a laptop?

Dynamic wallpapers use slightly more battery than static images because they animate, but the difference is minimal on modern Macs. Solid color wallpapers use the least power. If you're trying to extend battery life, a color wallpaper is marginally better than a photo, but the impact is small compared to other factors like screen brightness.