The fastest way to change your desktop image
Open System Settings, click Wallpaper, select a category, and click the image you want. That's the entire process on any recent Mac. If you want to use your own photo instead of Apple's built-in images, you can drag a photo file directly onto the wallpaper preview, or click the plus sign to browse your computer for a file. The change takes effect when ready.
The steps are slightly different depending on whether you're running macOS Sonoma or newer, or an older version — but the idea is the same across all versions. This guide covers both paths so you can follow whichever one matches your Mac.
Key Takeaways
- System Settings is where you control your desktop background on any Mac; it's the central place Apple put all your computer's appearance choices.
- You can use Apple's built-in wallpapers, which come organized by category, or upload any photo file from your computer.
- Your Mac can automatically change the wallpaper on a schedule you set, or show a different image each time you wake the computer.
- If you want different backgrounds on different monitors, you can set them separately in the same Wallpaper panel.
How to change your wallpaper on macOS Sonoma or newer
Click the Apple menu in the top-left corner, then select System Settings. In the sidebar on the left, scroll down and click Wallpaper. You'll see a grid of wallpaper categories — Dynamic, Light, Dark, Collections, and Photos. Click any category to see the images inside it.
Once you find an image you like, click it once. Your desktop background changes when ready. If you want to use a photo from your computer instead, click the plus sign at the bottom of the window, navigate to the photo file, and click Open. The photo becomes your new wallpaper right away.
If you have multiple monitors connected to your Mac, you can set a different wallpaper on each one. Just click the monitor you want to change in the Wallpaper window, then select a new image for that specific screen.
How to change your wallpaper on macOS Ventura or older
Click the Apple menu, then System Preferences (or System Settings, depending on your macOS version). Click Desktop & Screen Saver. You'll see two tabs at the top: Desktop and Screen Saver. Make sure Desktop is selected.
On the left side, you'll see a list of image sources: Apple's built-in wallpapers, your Photos library, and any folders on your computer. Click a source to see the images inside it. Once you find one you want, click it. Your desktop background changes when ready.
To use your own photo, click the folder icon at the bottom of the source list, navigate to the photo file on your computer, and click Open. The photo becomes your wallpaper right away.
Setting up automatic wallpaper changes
Both newer and older versions of macOS let you set your wallpaper to change automatically. In System Settings (Sonoma or newer), open Wallpaper, select a category that supports rotation — Dynamic, Collections, or Photos — and look for a dropdown menu that says "Change picture." Choose how often you want the image to change: every 30 minutes, hourly, daily, weekly, or when you wake your Mac.
On macOS Ventura or older, open Desktop & Screen Saver, select a source on the left, and check the box that says "Change picture." Then use the dropdown menu to pick your timing. Your Mac will rotate through the available images on the schedule you set.
Using photos from your own library
You can set any photo file on your computer as your wallpaper — not just Apple's built-in images. The file can be a JPEG, PNG, HEIF, or TIFF. On Sonoma or newer, click the plus sign in the Wallpaper panel and navigate to the photo. On Ventura or older, click the folder icon in the Desktop & Screen Saver panel and navigate to the photo.
If you want to rotate through multiple photos from your own library, create a folder on your computer, put all the photos you want in that folder, and then point your Mac to that folder in the Wallpaper settings. Set it to change automatically, and your Mac will cycle through them on the schedule you choose.
Your Mac stores the wallpaper file location, not a copy of the image itself. If you move or delete the original photo file, your wallpaper will disappear. Keep your wallpaper photos in a folder you don't plan to reorganize.
What to do if your wallpaper won't change
If you've clicked a new wallpaper but your desktop still shows the old image, try restarting your Mac. Sometimes the display doesn't refresh when ready, especially if you have a lot of apps open or your computer is running slowly.
If you're trying to use a photo from your computer and it won't show up, check that the file is in a format your Mac recognizes — JPEG, PNG, HEIF, or TIFF. If the file is in a different format (like BMP or GIF), you'll need to convert it first using a tool like Preview or an online converter. Also check that you have permission to read the file. If the photo is in a folder that requires a password or special access, your Mac won't be able to use it as wallpaper.
If automatic wallpaper rotation isn't working, make sure you've selected a category that supports it. Not all wallpaper sources allow automatic changes — for example, a single photo file won't rotate, but a folder full of photos will.
Frequently Asked Questions
Can I set different wallpapers for different spaces or desktops?
No. Your Mac applies the same wallpaper to all spaces and virtual desktops. If you have multiple monitors, you can set a different wallpaper on each physical monitor, but not on different virtual spaces on the same monitor.
What happens if I delete the photo I used as my wallpaper?
Your wallpaper will disappear and your Mac will show a blank desktop. Your Mac stores the location of the wallpaper file, not a copy of the image. If you want to keep a photo as your wallpaper, leave it in a permanent location on your computer.
Can I use a video or animated image as my wallpaper?
No. macOS only supports static image files — JPEG, PNG, HEIF, and TIFF. You cannot use video files, GIFs, or animated images as your desktop background.
Why does my wallpaper look blurry or pixelated?
Your image file might be too small for your monitor's resolution. For the sharpest result, use an image that's at least as wide and tall as your monitor's resolution. You can check your monitor's resolution in System Settings under Displays.
Can I schedule my wallpaper to change at specific times, like morning and evening?
macOS doesn't offer time-based scheduling for wallpaper changes. You can only set it to change at fixed intervals — every 30 minutes, hourly, daily, or weekly. If you need more control, third-party apps like Unsplash Wallpaper or Patterned offer scheduling features, but they require installation.