A split screen view on a laptop or desktop computer is the division of the display screen into separate parts, each of which displays a different document, browser tab, or file. Splitting the screen is useful for multitasking and eliminates the need to switch back and forth between two windows. Split view can be used for:
- Copying data from one document into a spreadsheet
- Keeping a chat window open on one screen while browsing the internet on the other
- Viewing research while writing an article
Mac offers a split screen mode for its users to view two apps, browsers, files, etc. on either sides of the display. This feature is available for the OS X El Capitan operating system and later. Keep reading to learn how to use the feature.
In this definition...
How to split screen on a Mac
- To ensure the feature is enabled, check the settings. Go to Launchpad > System Preferences > Mission Control. Check the box that reads Displays have separate Spaces.
- Make sure neither window you want to use is in full-screen mode. If it is, click the green dot in the upper left corner once to exit full-screen mode.
- With those same three dots on the same window, hover over the green button or click and hold it. You’ll see a series of options for screen view.
- Select either Tile Window to Left of Screen or Tile Window to Right of Screen. We’ll select to the left.
- The screen will display on the left side. On the right side, any other window that is not in full-screen mode will be available to choose for the right side.
- Select the window you want to be on the right side and begin simultaneous use.
Read also: How To Text From A Computer
Mac split screen FAQ
How do I exit split screen mode?
1. Move your cursor to the top of the screen until the red, yellow, and green dots appear in the top left.
2. Click the red button to close the window entirely or the green button to exit split screen mode.
3. The window you did not exit out of is still open, it’s just hidden in full-screen mode. To access it, navigate to Mission Control by swiping three fingers in an upward motion on the trackpad. Click the window now visible on the top of the screen. 
Why won’t my Mac do split screen?
There may be multiple reasons your Mac is unable to display multiple screens.
First, ensure neither window is not in full-screen mode. Split screen view only works when the windows are not full screen.
If that’s not the issue, make sure within system preferences that the Displays have separate Spaces box is checked. Refer to step 1 of How to split screen on a Mac above.
If that option is enabled, check that you’ve updated to MacOS 10.11 or later. You can check your current OS version by clicking the Apple icon in the top left menu and selecting About this Mac. 
If you’re using an earlier version, update it by clicking the Software Update… button on the lower half of the window.
How to adjust the screens in split screen
If you want one window to be larger than the other, click on the black border between the two screens. Drag your cursor to resize the windows to your preference. 
How do I access Mission Control in split screen view?
You can use Mission Control for quick viewing and switching between all active windows both in Split View and full-screen mode. To launch mission control while in split screen view, use one of the following options:
– Press F3 on the keyboard, the button for Mission Control. If your Mac has the touch bar at the top, press the icon with the three small boxes that look like this:
– Hold down Control + Upwards arrow.
– Swipe up with three or four fingers on the trackpad.
– Open the Launchpad and navigate to Mission Control in the list of apps.
What is the keyboard shortcut for split screen on Mac?
1. Press Control + Command + F to enter full-screen mode for a window you want for one side of the screen.
2. Hit F3 or another method to access Mission Control.
3. Drag another app, browser, file, etc onto the window you currently have in full screen.
4. Click into that window, and split view will be enabled.
Read next: How to Reboot Your Mac Computer
