How to split screen on Mac

Drag windows to the edges (macOS 15 and later)

1. Drag the first window by its title bar to the left edge of the screen. When the pointer reaches the edge, a highlighted area shows where the window will go. Release it there.
2. Drag the second window to the right edge and release it the same way.

Dragging to a corner gives a quarter of the screen, and dragging to the menu bar fills the whole desktop. For faster tiling, hold Option while you drag a window toward an edge.

If you keep dragging past the top edge, Mission Control opens. To stop that, turn off Drag windows to top of screen to enter Mission Control in System Settings › Desktop & Dock.

Split the screen with the green button or the Window menu

1. Click the window you want on the left.
2. Hold the pointer over the green button in its top-left corner. A menu with layouts appears: Move & Resize for this window, Fill & Arrange for several windows, Full Screen for Split View. Press Option to see more layouts.
3. Choose the left half under Move & Resize, or the left-and-right layout under Fill & Arrange to place this window on the left and the window you used before it on the right.

The same layouts are in the menu bar under Window › Move & Resize: Halves, Quarters and Arrange. Keyboard shortcuts for the active window:

• Fn-Control-Left Arrow or Fn-Control-Right Arrow: the left or right half.
• Fn-Control-Shift-Left Arrow: this window on the left, the previous one on the right.
• Fn-Control-F: fill the screen. Fn-Control-R: return to the previous size.

How to use Split View on Mac

Split View puts two apps side by side in full screen, with no desktop, Dock or menu bar in the way. It opens in a space of its own, and only apps that support it can join.

1. Hold the pointer over the green button of the first window and choose Full Screen › Left of Screen or Right of Screen.
2. On the other half of the screen, click the second window.

• Drag the bar between the two apps to give one of them more room. Double-click the bar to make the halves equal again.
• Move the pointer to the top of the screen to show the menu bar, or to the bottom to show the Dock.
• To leave, hold the pointer over the green button of either app and choose Move Window to Desktop. The other app stays in full screen in its own space.

Split screen on macOS 14 Sonoma

macOS 14 has no window tiling, so dragging to the edges and the Move & Resize layouts are not there. Split View works: hold the pointer over the green button, choose Tile Window to Left of Screen or Tile Window to Right of Screen, then click the second window on the other side.

Turn window tiling off or remove the gaps

1. Choose Apple menu › System Settings, then click Desktop & Dock in the sidebar.
2. Scroll down to the Windows section and turn the switches on or off: Drag windows to left or right edge of screen to tile, Drag windows to menu bar to fill screen, Hold ⌥ key while dragging windows to tile, Tiled windows have margins.

Turn off Tiled windows have margins if you want tiled windows to touch each other without a gap.