Split View lets you run two apps side by side, each taking up half the screen, without the manual dragging and resizing most people default to when trying to work with multiple windows at once.
It’s built directly into macOS, works with almost any app, and once you know the shortcuts, it becomes one of those features you use dozens of times a day without thinking about it.
The value isn’t just aesthetic. Comparing a spreadsheet against a report, referencing an email while writing a reply, or keeping a browser and a code editor visible at the same time all become noticeably faster when you’re not constantly switching between full-screen windows or manually resizing overlapping ones.
What Split View Actually Does

Split View takes two app windows and locks them into a dedicated full-screen space, each occupying exactly half the display, separated by a draggable divider. It’s different from just resizing two windows manually, because Split View windows snap into place, stay locked to their half of the screen even if you switch to a different Space and back, and don’t require you to fuss with pixel-precise dragging every time you want a clean two-app layout.
It’s also distinct from Stage Manager, a newer macOS feature that organizes multiple windows and apps into groups you can switch between. Split View is simpler and more direct: exactly two windows, side by side, in one dedicated screen.
How to Enter Split View
There are two main ways to trigger Split View, and which one feels more natural depends on how you already work with windows.
Method 1: Using the green full-screen button
- Hover your mouse over the green button in the top-left corner of any window, without clicking.
- A small menu will appear with options including “Tile Window to Left of Screen” and “Tile Window to Right of Screen.”
- Click one of these options. The window will snap to that half of the screen, and you’ll see thumbnails of your other open windows on the opposite side.
- Click one of the thumbnails to fill the other half, or click on any other visible window to select it.
Method 2: Dragging a window to the edge of the screen
- Click and hold a window’s title bar.
- Drag it to the far left or far right edge of your screen until you see the screen outline highlight, indicating it will snap into place.
- Release the window. It will fill that half of the screen.
- Click another window from the thumbnails shown, or select any visible window to fill the remaining half.
Both methods produce the same result. The green button approach is a bit more discoverable for people new to the feature, while dragging feels faster once it becomes a habit.
Adjusting the Split
Once two apps are in Split View, you’re not locked into an even 50/50 division. A vertical divider line sits between the two windows, and you can click and drag it left or right to give one app more screen space than the other.
This matters in practice more than it sounds like it would. If you’re referencing a PDF while writing in a document, you might want the PDF to take up a smaller portion of the screen once you know you only need to glance at it occasionally, freeing up more room for your writing.
Some apps have a minimum width they’ll allow in Split View, particularly ones with dense toolbars or sidebars, so if the divider won’t move as far as you’d like in one direction, that’s usually the receiving app’s interface hitting its practical limit rather than a system restriction.
Switching Which Apps Are in Split View
You don’t need to exit Split View entirely just to change one of the two apps.
To replace one side, click the window you want to remove, hover over its green button again, and this time you’ll see an option to exit Split View, or you can simply switch focus to Mission Control and select a different window to swap in from there. On many macOS versions, clicking on any other open window’s icon in the Dock and then choosing to tile it will replace whichever side you specify.
A more direct method: swipe up with three or four fingers on the trackpad (or use Control + Up Arrow) to open Mission Control, where you’ll see your Split View pairing represented as its own Space at the top of the screen. From here you can drag a different window into either half.
Using Mission Control to Manage Multiple Split Views
You’re not limited to a single Split View pairing. macOS lets you create several, each existing as its own full-screen Space, and you can move between them like you would between any other Spaces.
Open Mission Control (swipe up with three or four fingers, or press Control + Up Arrow) to see all your current Spaces laid out along the top of the screen, including any Split View pairs you’ve created. This is useful if you regularly switch between different two-app combinations, like an email and calendar pairing for scheduling work, and a browser and notes app pairing for research.
Switching between Spaces, including Split View pairs, can also be done with Control + Left Arrow or Control + Right Arrow, letting you cycle through them without opening Mission Control visually each time.
Which Apps Work Well in Split View
Most native macOS apps support Split View without any issues, including Safari, Mail, Notes, Pages, Numbers, Finder, and Messages. Many third-party apps support it too, though this depends on how the app itself is built.
Apps that use macOS’s standard windowing system generally work fine. Apps built with certain cross-platform frameworks, or ones with unusual custom window behaviors, sometimes don’t offer the tiling options in their green button menu, or behave oddly when dragged to a screen edge. If an app doesn’t show tiling options when you hover over its green button, that’s usually a sign it doesn’t fully support Split View, and manually resizing the window afterward is your fallback in that case.
Browsers deserve a specific mention, since they’re one of the most common Split View pairings. Safari, Chrome, and most Chromium-based browsers support Split View normally, and you can further use the browser’s own tab-splitting features (like Safari’s Tab Overview or Chrome’s window arrangement) to get even more layout flexibility on top of the system-level split.
Split View vs. Manually Resizing Windows
It’s worth being direct about when Split View is actually the better tool, since it isn’t always the right choice.
Split View works best when you genuinely want two apps visible at all times, in a dedicated layout you’ll return to repeatedly, like writing while referencing a source document. The full-screen, locked-in nature of it removes distractions from other windows and the desktop itself.
Manually resizing and positioning windows on your desktop, without entering Split View, is better when you need more flexibility, like glancing at a third window occasionally, dragging files between apps outside the two-window pairing, or working with windows of very different natural sizes where a strict 50/50 or adjustable split doesn’t fit well. Split View intentionally limits you to two windows at a time in that Space, so if your workflow genuinely needs three or four windows visible simultaneously, a regular desktop with manually arranged windows, or Stage Manager, will serve you better.
Using Split View With an External Display
If you’re using a MacBook connected to an external monitor, Split View operates independently on each screen. You can have one Split View pairing active on your external display while using your MacBook’s built-in screen normally, or even have two separate Split View pairs going at once, one per screen.
This is particularly useful for a common setup: keeping a communication app like Slack or Mail full screen on the laptop display while running a Split View pairing of your main work apps on the larger external monitor.
To set this up, simply enter Split View on whichever screen you’re actively working on, using the same green button or drag-to-edge methods described earlier. macOS treats each display’s Spaces separately, so there’s no extra configuration needed to keep them independent.
Exiting Split View
To leave Split View and return to normal windowed mode, hover over the green button on either window and select the option to exit full screen, or simply click the green button itself, which for a Split View window typically restores it to a regular, freely resizable window rather than entering full screen for that single app.
You can also press the Escape key while a Split View window is focused in some configurations, though the green button method is the most consistent way to reliably exit across different macOS versions.
Common Split View Problems and Fixes
The tiling options don’t appear when I hover over the green button. This usually means the app doesn’t support Split View directly, or you’re hovering rather than holding, since a quick hover before the app registers the interaction sometimes dismisses the menu before it fully appears. Try holding the button for a full second before releasing.
Dragging a window to the screen edge doesn’t trigger the tile preview. Make sure you’re dragging using the window’s title bar specifically, not just clicking anywhere inside the window. Also check that Mission Control settings under System Settings > Desktop & Dock haven’t been changed to disable this behavior, since it can be turned off.
Split View apps revert to normal windows unexpectedly. This can happen if the app itself force-quits or crashes, which breaks it out of the Split View pairing automatically. It can also happen with certain apps that don’t fully support persistent full-screen states, particularly some older or poorly updated third-party software.
The divider won’t move past a certain point. This is typically the receiving app enforcing a minimum window width based on its own interface requirements, not a system limitation. Some apps, especially ones with complex sidebars or multi-pane layouts, need a certain amount of horizontal space to function properly.
Frequently Asked Questions
Does Split View work the same way on every Mac? Yes, Split View behaves consistently across MacBooks, iMacs, and Mac minis, since it’s a macOS-level feature rather than something tied to a specific hardware configuration. The main variable is display size, since a larger screen makes a 50/50 split more comfortable for apps with dense interfaces.
Can I use Split View with three or more apps at once? No, Split View is limited to exactly two windows per Space. If you need more than two apps visible simultaneously, look at Stage Manager instead, which is designed for managing several windows and groups of apps at once, though with a different visual approach than a strict side-by-side split.
Is there a keyboard shortcut to enter Split View directly? There’s no single default keyboard shortcut that triggers Split View from scratch, though once a window is already in Split View, Control + Left Arrow and Control + Right Arrow let you navigate between Spaces, including your Split View pairs, without touching the trackpad or mouse.
Does Split View affect performance? No meaningfully. Split View is a windowing feature, not a rendering mode, so running two apps side by side uses the same system resources as running them in two separate regular windows.
Can I use Split View on a single small MacBook screen comfortably? It depends on the apps involved. Two apps with simple, uncluttered interfaces work fine even on a 13-inch display. Apps with dense sidebars or toolbars can feel cramped at exactly half width on a smaller screen, in which case adjusting the divider to favor one app, or using an external display when available, makes for a more comfortable experience.
Conclusion
Split View is one of the simplest ways to get more out of a Mac’s screen without buying a bigger monitor or juggling overlapping windows all day. Once you’re comfortable triggering it through the green button or a drag to the screen edge, and know how to adjust the divider and swap apps in and out, it becomes a fast, almost automatic part of how you work rather than a feature you have to consciously reach for. Pair it with Mission Control for managing multiple Split View combinations, and it scales well whether you’re working on a single laptop screen or across a full external display setup.
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