How to Split Your Screen for Work on Windows and Mac

Splitting your screen means using Snap, built into Windows, or Split View, built into macOS, to place two windows side by side without installing anything extra. On Windows, drag a window to the screen edge or press Windows + arrow key; on Mac, hold the green button on a window and choose which half to use.

What splitting your screen for work means, and how it differs from adding a second monitor

"Splitting the screen" here means dividing ONE physical screen into two (or more) window panes, each running a separate app — for example a browser on the left, Excel on the right. This is a built-in operating system feature, at no extra cost and no extra hardware.

That's different from "adding a second work screen" in the sense of plugging in an actual second monitor via HDMI/USB-C — that's adding a piece of hardware; once the OS detects the new display you can drag windows onto it, or split that screen further too. If you're looking to connect a physical second monitor, go to your computer's display settings (typically Settings > System > Display on Windows, System Settings > Displays on Mac) to detect and arrange the screens — that's a different set of steps from the ones below.

This guide focuses on splitting a single screen you already have, which works even on a laptop with no external monitor attached.

How to split your screen on Windows

Windows calls this feature Snap. There are three ways; the first two work on both Windows 10 and Windows 11, while the third — picking a layout with 3 or 4 windows — is Windows 11 only.

Method 1: Drag the window to the screen edge

1. Click and hold the title bar of the window you want to split.
2. Drag it right up against the left or right edge of the screen until you see a faint outline covering half the screen.
3. Release the mouse — the window snaps to fill exactly that half.
4. Windows shows your other open windows as thumbnails (Snap Assist) in the empty half; click one to place it there.

Method 2: Use the Windows key + arrow shortcut

1. Click the window you want to split so it's selected.
2. Hold the Windows key and press the left or right arrow — the window fills that half of the screen.
3. Press Windows + up or down arrow again to shrink it into a quarter of the screen (a corner).
4. Select the next window and repeat to fill the remaining space.

Method 3: Snap layouts — split into 2, 3, or 4 windows (Windows 11)

Windows 11 adds a picker with several ready-made layouts, not just a 50/50 split.

1. Hover over the maximize button (the square icon) at the top-right of a window, or press Windows + Z.
2. A small panel appears with a few layouts: two windows side by side, three windows (one large, two small), or four equal windows.
3. Click the zone where you want the current window to go.
4. Windows shows your other open windows so you can fill in the remaining zones.

If dragging a window doesn't split it

Go to Settings > System > Multitasking and check that "Snap windows" is turned on. This is also where you turn the Snap Assist suggestions and the Snap layouts hover panel on or off. Users on several Windows forums report that Snap sometimes stops working because of conflicts with other window-management software running at the same time — third-party tiling tools, screen recorders, or the FancyZones utility in PowerToys — and that temporarily disabling those tools and retrying often fixes it.

How to split your screen on a MacBook (Split View)

macOS calls this feature Split View. Only apps that support Split View can be tiled this way — most built-in Mac apps (Safari, Mail, Pages, Numbers, Finder...) do.

1. Move the pointer to the app window you want to split, and hold it over the green button at the top-left corner of the window (don't click, just hold) until a menu appears.
2. Choose "Full Screen > Left of Screen" or "Right of Screen" depending on which side you want that window on.
3. The other half of the screen shows your open windows as thumbnails — click the app you want to place on that side.

Swapping an app or resizing the two panes

• To swap the app shown on one side: hover over that window's green button, choose "Replace Tiled Window", then click the replacement app.
• To make one side wider: move the pointer to the divider bar in the middle of the screen — the cursor changes shape — and drag it left or right. Double-click the divider to reset both sides to an even split.

How to go back to your normal desktop (exit Split View)

Click the window you want to exit, hover over the green button at its top-left corner, and choose "Move Window to Desktop" — that window returns to running in a normal window on the desktop instead of taking up half the screen.

Tip: set your own Split View shortcut

macOS doesn't ship with a default keyboard shortcut for entering Split View the way Windows does. According to a user on Apple's community forum, you can create your own: go to Apple menu > System Settings > Keyboard > Keyboard Shortcuts > App Shortcuts, and add a shortcut for the "Tile Window to Left of Screen" menu command (and similarly for "Right of Screen"). Another user in the same thread said binding it to Control + Option + Command + arrow key, instead of using the Function/Fn key, felt smoother on a MacBook keyboard.

Using split screen with office tools and video calls

Split screen is most useful when you need to see two sources of information at once without constantly switching tabs:

• Cross-checking numbers from email against a spreadsheet: Outlook on one side, Excel on the other, if your company runs Microsoft 365 Business with the desktop Office apps installed.
• Drafting a document while looking things up in a browser: two browser windows, one with Google Docs or Sheets and one with the page you're checking — a good fit for teams on Google Workspace since everything runs in the browser with nothing extra to install.
• Taking notes during a call: put the video call window on one side and your notes or slides on the other — a common way people use Zoom Workplace to follow along without the call covering the speaker.

Frequently asked questions

Is splitting the screen on a MacBook the same as on Windows?

Not exactly. Both can split the screen in half, but Windows uses the Windows key + arrow shortcut or dragging a window to the edge, while Mac uses the green button in a window's corner and "Full Screen > Left/Right of Screen". Windows 11 also has a layout picker (Snap layouts) for more than two windows that Mac doesn't have a built-in equivalent for.

My computer only has one screen — how do I get "2 work screens"?

If you mean viewing two windows at once on a single physical screen, follow the split-screen steps above (Snap on Windows, Split View on Mac) — no extra monitor needed. If you mean adding an actual second physical screen, that means plugging in a monitor via HDMI/USB-C and then using your computer's display settings to arrange it, which is a different process from the split-screen steps in this guide.

After splitting the screen, how do I get back to my normal desktop?

On Windows, drag the window away from the screen edge, or click the maximize/restore button at the window's top-right corner so it stops taking up half the screen. On Mac, hover over the green button at the window's corner and choose "Move Window to Desktop" to return it to a normal window.

Do I need to install extra software to split my screen?

No. Snap on Windows and Split View on Mac are both built into the operating system — nothing to install. Third-party tools exist for more elaborate layouts, but this guide covers the built-in feature, which is enough for most everyday office needs.

Why doesn't dragging a window to the edge split the screen on Windows?

The Snap feature is likely turned off in settings — go to Settings > System > Multitasking and turn "Snap windows" back on. If it's already on and still doesn't work, try temporarily closing other window-management software running at the same time, since some of those tools can conflict with Windows' built-in Snap.