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How to snap windows on a Mac: halves, quarters and keyboard shortcuts

Applies to macOS 15, 26 and 27Reviewed 2 November 2026Tested on macOS 27.2 and Tahoe 26.6.22 min read

Short answer

Yes, macOS can snap windows. Since macOS 15 Sequoia it has built-in window tiling, so you don't need an extra app to put two windows side by side. On older versions you're limited to Split View.

On this page
  1. Snap by dragging
  2. Snap with keyboard shortcuts
  3. Snap a window to another monitor
  4. Snapping doesn't work? Check these settings
  5. Turn snapping off
  6. Other apps that can help
  7. Sources and further reading

Snap by dragging

  1. Drag a window by its title bar to the left or right edge of the screen. Let go when the outline appears, and the window fills that half.
  2. Drag it to a corner to fill a quarter of the screen.
  3. Drag it to the top edge (into the menu bar) to fill the whole screen without going full screen.
  4. Hold Option while dragging to see the tile outline right away, without pushing against the edge.
Desktop & Dock Windows section with tiling switches
macOS 27.2: the four tiling switches in Desktop & Dock.

Snap with keyboard shortcuts

These work on the front window. Fn is the Globe key on newer keyboards.

ShortcutWhat it does
Fn Control ← or →Tile to the left or right half
Fn Control ↑ or ↓Tile to the top or bottom half
Fn Control FFill the screen
Fn Control CCenter the window
Fn Control RReturn to the previous size
Fn Control Shift ← or →Arrange the two front windows side by side

You can see every option, with its shortcut, in the menu bar under Window › Move & Resize. Hovering over a window's green button shows the same choices.

Snap a window to another monitor

Drag the window onto the other display first, then snap it there by dragging to an edge or using the shortcuts above. Many apps also have Window › Move to [display name] in the menu bar, which sends the window across without dragging. Some apps put it under Move & Resize instead.

Snapping doesn't work? Check these settings

Open System Settings › Desktop & Dock and scroll to Windows. Four switches control tiling:

  • Drag windows to left or right edge of screen to tile. If this is off, dragging to an edge does nothing.
  • Drag windows to menu bar to fill screen.
  • Hold ⌥ key while dragging windows to tile.
  • Tiled windows have margins. Turn this off if you want snapped windows to touch with no gap.

A few other reasons snapping fails:

  • You're on macOS 14 Sonoma or older. Built-in tiling arrived in macOS 15. Check under Apple menu › About This Mac.
  • The app has a minimum size. Some apps refuse to get narrower than a set width, so a half-screen tile on a small display doesn't fit.
  • Another window manager is running. Apps like Rectangle or Magnet can take over the same drags and shortcuts. Quit one to test.
  • The shortcut clashes. If Fn Control shortcuts don't respond, look for a conflict in System Settings › Keyboard › Keyboard Shortcuts.

Turn snapping off

If windows keep snapping when you don't want them to, switch off Drag windows to left or right edge of screen to tile and Drag windows to menu bar to fill screen in System Settings › Desktop & Dock. Keyboard tiling keeps working.

Other apps that can help

You don’t need any of these for the steps above. They go further in different ways, so pick what fits how you work.

AppWhat it doesPrice
RectangleHalves, thirds and quarters with shortcuts or by dragging to snap areasFree, open source (Pro paid)
MagnetDrag-to-snap and shortcuts, sold on the Mac App StorePaid
MoomHover the green button for a resize grid; saves window arrangementsPaid
BetterSnapToolCustom snap areas and per-app snappingPaid
LoopRadial menu for resizing windows with a trigger keyFree, open source
AmethystAutomatic tiling layouts, no system changes neededFree, open source
AeroSpacei3-style tiling with its own instant workspacesFree, open source
yabaiAdvanced automatic tiling; some features need System Integrity Protection partly offFree, open source
Mission Boost Made by usClose, minimize and quit windows inside Mission Control, plus side-by-side layouts from there€9 once, free trial

Sources and further reading

Applies tomacOS 27TahoeSequoia

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