How to automatically change wallpaper on Mac

The simplest setup is a folder containing at least two images and a rotation interval that matches how often you actually want the desktop to feel different. Wallset adds a menu-bar workflow, optional collections, and multi-display behavior to that basic idea.

1. Prepare a wallpaper folder

Wallset uses ~/Pictures/Wallpapers by default. That location works without a permission prompt. You can select a folder elsewhere through Finder; macOS grants Wallset persistent access to that choice.

Use JPG, JPEG, PNG, HEIC, WebP, or TIFF images. Add at least two usable images so rotation has somewhere to move.

2. Choose an interval

In Wallset Settings, enable Auto-Rotation and choose 5, 10, 15, 30, 60, or 120 minutes. A short interval makes the desktop visibly active; a longer interval tends to fade into the background while still providing variety.

3. Choose the rotation source

Free rotates from the entire library. During the Pro trial or with Pro, you can select a named collection as the source—for example, a dark collection for evening work or a landscape collection for a large display.

4. Decide how multiple displays should behave

On Free, every connected display receives the same randomly selected wallpaper. With Pro, each display gets an independently selected random image during rotation.

5. Control rotation from the menu bar

Wallset's menu can pause or resume automatic rotation, shuffle immediately, and restore the previous wallpaper arrangement. Rotation pauses while the Mac sleeps and resumes after wake.