How to split screen on a Mac

Two windows side by side

1. 1

   Hover over the green button

   It is the third of the three coloured buttons in the top-left corner of a window.
2. 2

   Choose a side

   Under Move & Resize, choose Left or Right. The window fills that half of the screen.
3. 3

   Fill the other half

   Do the same with a second window and choose the other side. Drag the line between them to change the sizes.

Faster ways to tile

Drag to the edge

Drag a window by its title bar to the left or right edge of the screen and let go when the outline appears.

From the keyboard

Hold Fn and Control and press the left or right arrow to send the window to that half.

In full screen

Make one app full screen, open Mission Control, and drag another window onto its thumbnail at the top. The two share the screen until you leave full screen.

Two to four web pages in one window, in Tern

Tiling splits your screen between apps. Tern's split view splits one browser window between pages, so a doc and its preview, or a map and a guide, stay together.

1. 1

   Drag a tab onto the page

   Drag a tab from the sidebar onto the left or right half of the page you are reading. Or right-click a link and choose Open Link Beside.
2. 2

   Choose a layout

   Split View › Two, Three or Grid (⌃⌘2, ⌃⌘3, ⌃⌘4) for two, three or four pages.
3. 3

   Rearrange

   Drag a pane by the strip above it onto another pane to swap them. ⇧⌘↩ shows just the focused pane; ⇧⌘\ ends the split.
4. 4

   Keep the layout

   Split View › Save as Desk (⌥⌘S). Reopen it any time with ⌥1 to ⌥9.

Questions

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