Branching lines grow toward scattered hidden targets until they fill the sheet like roots or a river delta, thick near the start and tapering to fine tips.
Branching lines grow toward scattered hidden targets until they fill the sheet like roots or a river delta, thick near the start and tapering to fine tips.
In the app you can adjust the paper, ink, draw speed and targets. 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 Root Lines 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.
Root Lines FAQ
How do I set Root Lines as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Root Lines 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 Root Lines as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Root Lines plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Root Lines free?
Root Lines 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 Root Lines a video loop?
No. Root Lines 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 Root Lines 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 Root Lines costs next to nothing in everyday use.
Which Macs does Root Lines run on?
Root Lines needs macOS Tahoe 26 or later.
