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Universal Display Magnet: Snap your displaysand they stay put

A Mac app that keeps your monitors arranged, puts every window back after you reconnect or wake, and lines up Universal Control across multiple Macs.

Buy · $9.99

One-time purchaseOne license for three MacsmacOS 14 or laterCheck compatibility

What needs fixing?

macOS shuffles your displays

Wake the Mac or plug in a dock, and the monitors land somewhere new, with every window piled onto one screen.

The magnet puts them back

Each set of monitors keeps its arrangement, and it comes back the moment they reconnect, wake or get moved. Identical monitors are told apart by the serial numbers they report.

Every window goes home

Window positions are saved every few minutes and as the screens go to sleep, so each window returns to its monitor and Desktop.

Drag a display and it snaps flush

Displays snap edge to edge and line up their edges and centers. Place one with the arrows, type an exact position, then Apply. If anything looks wrong, it reverts by itself after 15 seconds.

  • One click

    Snap Displays Together pulls every display flush. No gaps, no overlaps.

  • Remembered

    Saved for each set of monitors and re-applied on reconnect and wake.

  • No built-in display needed

    Mac Studio, Mac mini or a MacBook with its lid closed.

More about Display arrangement

Multiple Macs, one desk

Every Mac's displays on one canvas, exactly where Universal Control has them. Drag another Mac's screens and they snap flush across your Macs, applied live, with an undo.

More about Universal Control

Any window, one keystroke

Halves, quarters, maximize, center and the next display, on shortcuts you can change. Or drag a window to an edge or a corner and watch the preview.

More about Window snapping

Save your desk, restore it in a click

A workspace saves every app's windows: which monitor, which Desktop or full-screen Space, and where. Restore it with a click or its shortcut, and the apps in it that aren't running open first.

More about Workspaces

Windows on a strip, room to keep going

Turn on Scrolling Windows and every window becomes a column on a strip that runs past the edges of the screen, with stacks, tabs, grid tiling and a shortcut for everything. Try it right here: press the keys or click them.

Optional and off until you turn it on. While it's on, window snapping and automatic window snapshots pause.

Every Scrolling Windows feature

Thought through, down to the menu bar

Your Macs, in sync

Arrangements and workspaces travel straight between your Macs over Wi-Fi, Ethernet or a Thunderbolt cable. Encrypted, no cloud, nothing to pair.

Wake one, wake them all

Wake or unlock this Mac and your other Macs' screens turn on too. A Mac that's fully asleep gets a Wake-on-LAN call, where its settings and network allow it.

When Universal Control acts up

Activity explains dropouts and lost input in plain words. Reset Universal Control restarts its services on your Macs and puts your arrangement back.

One click away

Snap buttons, Save Workspace and every workspace, one click away in the menu bar and the Dock menu.

A shortcut for everything

Give every snap and every workspace its own shortcut. Clashes with other apps are flagged.

All shortcuts

Speaks your language

In 18 languages. It follows your Mac, or pick one in Settings.

Every feature, try it live

Snap a display, bring back a desk, scroll a strip of windows. Every feature runs right here, so you can try it before it ever touches your Mac.

See every feature

Up and running in a minute

Your setup stays yours

  • No account

    Nothing to sign up for. You buy it with your email, and the app only needs its license key.

  • No cloud

    Your Macs talk to each other directly on your network, encrypted with a key only your Macs share.

  • No analytics

    No tracking and no usage statistics, and nothing is captured from your screen. The app only checks its license and looks for updates.

Read the privacy policy

Questions, answered

How much does it cost?
$9.99, once, with tax added at checkout where it applies. One license covers three Macs, and the app keeps working offline for up to seven days between license checks. License and updates has the details.
Which Macs does it run on?
Any Mac with macOS 14 or later: one download runs natively on Apple silicon and Intel. Every feature is verified on macOS 14 to 27, on Apple silicon and Intel. See compatibility.
Why do my displays keep moving around?
macOS rebuilds the arrangement when displays wake or reconnect, and often gets it wrong, especially with identical monitors or a dock. Universal Display Magnet remembers your arrangement for each set of monitors, tells identical monitors apart by the serial numbers they report, and puts it back whenever macOS moves things.
Do I need more than one Mac?
No. Display arrangement, workspaces and window snapping all work on one Mac. With more Macs linked through Universal Control, you can also arrange all their displays together and keep everything in sync.
What permissions does it ask for?
Device Control and Data Access (called Accessibility on older versions of macOS) to see and move windows, and Local Network to sync with your other Macs. It never asks to record your screen.
Does it work with Magnet installed?
Yes, but two apps can't own the same shortcut. Universal Display Magnet flags any shortcut another app already uses, so you can quit the other app or pick a different shortcut.
Does it work without a built-in display?
Yes. It works the same on a Mac Studio, a Mac mini or a MacBook with its lid closed.
What is Scrolling Windows?
A different way to lay out windows: each one becomes a column on a horizontal strip that scrolls, as in PaperWM or niri, with stacks, tabbed columns, grid tiling and a shortcut for every action. It's optional and off until you turn it on, and window snapping and automatic window snapshots pause while it's on.
How does it compare with ChainYourMac?
Both build on the open-source Paneru engine. Universal Display Magnet's Scrolling Windows adds grid tiling, next to everything the app does for your displays, workspaces and Universal Control, for $9.99 and three Macs. ChainYourMac is a dedicated scrolling window manager, with pinned columns, guided setup and automation. See the full comparison.
Does anything leave my Mac?
Nothing about your windows or displays, except to your own Macs: sync goes directly between them, encrypted. The app also checks its license key with Polar, the store that sells it, and looks for new versions once a day, which you can turn off. See the privacy policy.

Snap your desk into place

Buy · $9.99See how it compares

One-time purchase · Three Macs · macOS 14 or later