Change your wallpaper through System Settings

To change your MacBook wallpaper, open System Settings, go to Wallpaper, pick a new image, and click Set. The whole process takes about one minute. Your new wallpaper appears on your desktop and lock screen immediately.

Here is the exact path: Click the Apple menu in the top-left corner, select System Settings, then click Wallpaper in the left sidebar. A grid of built-in images appears. Click any image to preview it, then click Set Desktop Picture or Set Lock Screen Picture at the bottom right.

If you want the same image on both your desktop and lock screen, set it on the desktop first, then go back to Wallpaper and set it on the lock screen separately. MacBook does not automatically sync the two.

Key Takeaways

  • Open System Settings, click Wallpaper, choose an image, and click Set Desktop Picture or Set Lock Screen Picture.
  • You can use any image file on your computer as wallpaper by dragging it into the Wallpaper window or clicking Add in the sidebar.
  • Desktop and lock screen wallpapers are separate — changing one does not change the other.
  • If an image looks stretched or cut off, right-click it in Wallpaper settings and choose a different fit option like Fill Screen or Fit to Screen.
  • Your wallpaper choice syncs across all your Apple devices if you use the same iCloud account.

Use your own photos as wallpaper

You are not limited to Apple's built-in images. Any photo or image file on your Mac can become your wallpaper. Open System Settings, go to Wallpaper, and look for the Add button or a plus icon in the sidebar. Click it, navigate to the folder holding your image, select the file, and click Open.

The image appears in your Wallpaper window. Click it to preview, then click Set Desktop Picture or Set Lock Screen Picture. If the image looks stretched, pixelated, or cut off, right-click it and choose a different fit option — Fill Screen works best for photos, while Fit to Screen keeps the whole image visible without cropping.

You can also drag an image file directly from Finder into the Wallpaper window. This is faster if you already have the photo open or visible on your desktop.

Set different wallpapers for multiple desktops

If you use multiple desktops (also called Spaces), you can assign a different wallpaper to each one. Open System Settings, go to Wallpaper, and look for the Desktops section. Click the desktop number you want to change, pick a new image, and click Set.

This is useful if you organize your work by desktop — for example, one desktop for email, one for design work, one for coding. A different wallpaper on each one makes it easier to see which desktop you are on at a glance.

To check how many desktops you have, swipe up with four fingers on your trackpad (or press Control and the Up arrow key). You will see all your desktops in a row at the top of the screen.

Fix wallpaper that looks wrong

If your wallpaper appears stretched, blurry, or cut off, the image size or fit setting is the problem. Right-click the image in System Settings Wallpaper and look for options like Fill Screen, Fit to Screen, Stretch to Fill, or Center. Try each one until the image looks right.

Fill Screen crops the image to fit your screen without stretching it — this works best for photos. Fit to Screen shows the whole image but may leave empty space on the sides. Stretch to Fill uses the entire screen but may distort the image if it is the wrong shape.

If the image is very small or very large compared to your screen resolution, no fit option will make it look perfect. For best results, use an image that is at least 2560 by 1600 pixels if you have a modern MacBook.

Wallpaper syncs across your Apple devices

If you sign into iCloud on your Mac, iPhone, and iPad with the same Apple ID, your wallpaper choice syncs automatically across all three devices. Change your wallpaper on your Mac and it appears on your iPhone and iPad within a few minutes.

You can turn this off if you want different wallpapers on different devices. On your Mac, open System Settings, click your name at the top of the sidebar, go to iCloud, and uncheck Wallpaper. On your iPhone or iPad, go to Settings, tap your name, tap iCloud, and toggle off Wallpaper.

Syncing only works with wallpapers you set through System Settings. If you use a third-party app to change your wallpaper, it will not sync to your other devices.

Change your lock screen separately from your desktop

Your Mac lock screen (the screen you see before you type your password) and your desktop are two different wallpapers. You can set them to the same image or choose completely different ones.

To set your lock screen wallpaper, open System Settings, go to Wallpaper, click an image, and click Set Lock Screen Picture. To set your desktop wallpaper, click an image and click Set Desktop Picture. If you want both to match, you have to set them separately — there is no "set both" button.

Some people like a professional or minimal image on their lock screen and a more personal photo on their desktop. Others prefer them to match. There is no right choice — it depends on what you see most often.

Frequently Asked Questions

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

No. MacBook wallpaper must be a still image file — JPEG, PNG, HEIF, or TIFF. You cannot use video files or animated GIFs. If you want moving wallpaper, you would need a third-party app from the Mac App Store, though these can drain your battery faster.

Why does my wallpaper look different on my lock screen than on my desktop?

The lock screen crops and zooms images differently than the desktop does. If you set the same image on both, it may appear zoomed in or positioned differently on the lock screen. This is normal. You can adjust how it looks by right-clicking the image and choosing a different fit option.

What happens to my wallpaper if I update macOS?

Your wallpaper stays the same when you update macOS. If you used a custom photo, it remains. If you used a built-in Apple image, it stays too. The only time wallpaper changes is if you manually change it yourself.

Can I schedule my wallpaper to change automatically?

Yes. Open System Settings, go to Wallpaper, click an image, and look for a dropdown menu that says "Change picture" or "Auto-rotate". You can set it to change every hour, every day, or when you wake your Mac. This only works with Apple's built-in image collections, not custom photos.

Why is my custom photo not showing up in the Wallpaper window?

Make sure the file is in a format MacBook recognizes — JPEG, PNG, HEIF, or TIFF. If it is a different format like BMP or WebP, convert it first using Preview or another image app. Also check that the file is not corrupted by opening it in Preview to confirm it displays correctly.