Make Mac BetterHow to split the screen on a Mac
Working with two windows at once — a document and a browser, a video call and your notes — takes seconds on a Mac once you know where the option is.
Step by step
Hover over the green button
Move the pointer over the green button in the top-left corner of a window. A menu appears: choose the left or right half and then click the window you want on the other side.
Drag the window to an edge
On macOS 15 or later, drag a window to the left or right edge of the screen and release when the outline appears. Dragging to a corner gives it a quarter of the screen.
Use the keyboard
Press Fn-Control and the left or right arrow to send the window to that half. Fn-Control-F fills the screen and Fn-Control-R puts the window back as it was.
Adjust the division
Drag the edge between the two windows to give one more room. In full-screen Split View, drag the bar in the middle.
Why doesn’t dragging to the edge work?
It needs macOS 15 Sequoia or later, and the option “Drag windows to screen edges to tile” turned on in System Settings › Desktop & Dock. On older versions, hold the green button and choose “Tile Window to Left of Screen”.
How do I split the screen into three or four?
macOS tiles halves and quarters. For more windows, Make Mac Better lets you drag a window onto the edge of any other one: they share that space, and you can keep dividing as many times as you like. A grey preview shows where it will land before you let go.
Can I keep several windows in the same space?
Yes. In Make Mac Better, hold ⌘ while you drop one window onto another and they become tabs in the same slot, with a tab bar on top.
What if I work with many windows at once?
Instead of splitting, try a scrolling strip: each window gets its own column on a long row that you move through with ⌃⌥← and ⌃⌥→. Nothing overlaps and nothing has to be resized by hand.