PcFixin'

How to Resize, Tile, and Switch Mac Windows

By PcFixin' · July 17, 2026 · Mac · Mac windows, macOS multitasking, window tiling

Learn simple ways to arrange, resize, and move between Mac windows using built-in controls and keyboard shortcuts.

Resize a window with the pointer

Most Mac windows can be resized by dragging an edge or corner. Move the pointer to the border until it changes into a resizing pointer, then click and drag. Dragging a corner changes the height and width together, while dragging an edge changes only one dimension.

For more control, hold the Option key while dragging an edge or corner. The opposite side moves at the same time, resizing the window from its center. If a window will not resize, the app may require a minimum size or use a fixed window layout.

1. Move the pointer over any edge or corner of the window.
2. When the resizing pointer appears, click and hold.
3. Drag inward to make the window smaller or outward to enlarge it.
4. Release the mouse or trackpad when the window is the size you want.

Make a window fill the screen

A Mac offers two similar-looking choices: maximizing and full-screen mode. Maximizing makes a window larger while keeping it on the regular desktop. Full-screen mode places the app in its own workspace, called a Space, and normally hides the menu bar and Dock until you move the pointer to the appropriate edge.

To quickly enlarge a window without entering full screen, double-click its title bar. Depending on your settings, this may zoom the window or minimize it instead. You can check the behavior in System Settings under Desktop & Dock, using the setting for double-clicking a window’s title bar.

To enter or leave full-screen mode, click the green button in the upper-left corner of the window. You can also press Control-Command-F in many apps. Some apps use the green button differently or do not support full screen.

Tile windows on the desktop

Window tiling places windows into neat sections of the desktop. On macOS Sequoia 15 or later, built-in tiling is available without installing another app. Drag a window toward the left or right edge to place it on half of the desktop. You can also drag windows toward corners to create quarter-screen arrangements. A highlighted preview shows where the window will go before you release it.

For additional layouts, hover over the green window button or open the Window menu in the menu bar and look for arrangement or move-and-resize choices. The exact wording and available layouts can vary by macOS version and window size.

If dragging to an edge does not offer desktop tiling, your Mac may be using macOS Sonoma 14 or earlier. Those versions provide Split View for two-app layouts but do not include Sequoia’s more flexible desktop tiling tools.

1. Click and hold the window’s title bar.
2. Drag the window toward an edge or corner of the screen.
3. Wait for the placement preview to appear.
4. Release the window to put it in the highlighted area.

Use two apps together in Split View

Split View displays two apps side by side in a full-screen Space. It is useful when you want to read a webpage while writing notes, compare documents, or move information between apps without other windows getting in the way.

The labels shown after hovering over the green button differ slightly between macOS releases. Look for an option that places or tiles the window on the left or right side of the screen.

1. Open the two apps or windows you want to use.
2. Move the pointer over the green button in the upper-left corner of the first window.
3. Choose the left-side or right-side tiling option that uses full-screen Split View.
4. Click the second window when macOS asks what should fill the other side.
5. Drag the divider between the apps to give one side more room.
6. To leave Split View, move the pointer to the top of the screen and click a window’s green button.

Switch between windows quickly

Keyboard shortcuts can be faster than searching through overlapping windows. Press Command-Tab to switch between open apps. Keep holding Command and tap Tab until the app you want is selected, then release Command.

If an app has several windows open, press Command-` to move between them. The ` key, sometimes called the grave accent key, is usually above Tab on a US keyboard. Its location can differ on other keyboard layouts.

Mission Control shows all open windows at once. Press Control-Up Arrow, use the Mission Control key if your keyboard has one, or swipe upward with three or four fingers on a trackpad. The gesture depends on your Trackpad settings. Click any window to bring it forward.

Full-screen apps and Split View layouts appear as separate Spaces. Press Control-Left Arrow or Control-Right Arrow to move between them, or swipe left or right with three or four fingers on a trackpad.

A few useful window shortcuts

Press Command-M to minimize the current window into the Dock. Command-H hides the current app and all its windows; click the app’s Dock icon to show them again. To close the active window, press Command-W. Closing a window does not always quit the app, so use Command-Q when you want to exit the app completely.

If windows feel crowded, combine these shortcuts with Mission Control and desktop tiling. A half-screen layout works well for two tasks, while full screen is better when you need to concentrate on one app.

Bottom line

Drag window edges for quick resizing, use tiling or Split View for side-by-side work, and rely on Command-Tab, Command-`, and Mission Control to move around faster. Once these few actions become familiar, multitasking on your Mac feels much less cluttered.