Shaded colour bars around a turning drum are laid down one scanline at a time from a swaying position and scroll upward, stacking into a twisting ribbon that snakes across the screen.
Shaded colour bars around a turning drum are laid down one scanline at a time from a swaying position and scroll upward, stacking into a twisting ribbon that snakes across the screen.
In the app you can adjust the colours, bar width, bars and twist. 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 Bar Snake in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Bar Snake FAQ
How do I set Bar Snake as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Bar Snake 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 Bar Snake as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Bar Snake plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Bar Snake free?
Yes. Bar Snake is Free Forever in SCRNSVRS – no account, no ads, no subscription.
Is Bar Snake a video loop?
No. Bar Snake 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 Bar Snake 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 Bar Snake costs next to nothing in everyday use.
Which Macs does Bar Snake run on?
Bar Snake needs macOS Tahoe 26 or later.
