A soft shaft of light crosses a dark room, and the dust drifting on slow air glitters only while it floats inside it.
A soft shaft of light crosses a dark room, and the dust drifting on slow air glitters only while it floats inside it.
In the app you can adjust the colours, motes, beam width and air speed. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Dust in a Beam in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Dust in a Beam FAQ
How do I set Dust in a Beam as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Dust in a Beam in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Dust in a Beam as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Dust in a Beam plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Dust in a Beam free?
Dust in a Beam is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Dust in a Beam a video loop?
No. Dust in a Beam is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Dust in a Beam slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Dust in a Beam costs next to nothing in everyday use.
Which Macs does Dust in a Beam run on?
Dust in a Beam needs macOS Tahoe 26 or later.
