Every shortcut

Every default shortcut, grouped by what you want to do. Point at one (or tap it) and its keys light up on the keyboard.

What the symbols mean

They sit at the bottom left of a Mac keyboard. ↩ is Return. A shortcut written ⌃⌥← means: hold Control and Option, then press the left arrow.

Pick a shortcut below.

Layouts

⌥1 … ⌥9Switch to that layout
⇧⌥1 … 9Send the focused window to a layout
⌥TabNext layout
⌥NNext empty layout
⌥↑Layouts Bar: every layout and its windows
⌃⌥SSave the current workspace

Snapping

⌃⌥ + ←→Left or right half
⌃⌥ + ↑↓Top or bottom half
⌃⌥ + UIJKQuarters
⌃⌥ + DFGThirds (on ISO keyboards the middle one can be the key left of Z)
⌃⌥ + ETFirst or last two thirds
⌃⌥↩Maximize
⌃⌥RRetile the display (Bento Box)
⌃⌥SpaceSnap Wheel (or middle-click, or tap with three fingers)

Windows and tabs

⌃⌥⌘ + ←→↑↓Focus the window to the left, right, above or below
⌃TabNext tab in the focused group (Tabs mode)

Overview, views and Expand

⌃⌥OOverview: every window on every display
⌃⌥=Expand a level
⌃⌥-Back a level
⌃⌥ZShow the focused window on its own
⌃⌥[ · ⌃⌥]Go back · go forward
⌃⌥1 … 9Go to a saved view
⌃⌥⇧1 … 9Save what you're looking at as a view

Dock mode

⌃⌥HShow or hide the Desktop's tile
⌃⌥AArrange every window into tiles
⌃⌥NSplit with a new Finder window
⌃⌥LFloat or dock the focused window

Moving and sizing

⌃⌥⇧ + ←→↑↓Swap the window with the one beside it that way. In a tab group, ↑ and ↓ move the tab along
⌃⌥WWider: ½, then ⅔, then 90%, then full
⌃⌥⇧WNarrower: back down the same steps
⌃⌥CCentre the window, keeping its size (in Dock mode it floats onto the Desktop tile)
⌃⌥BPut windows back in their places, after an app moved or resized its own
⌃⌥MSend the window to the other display
⌃⌥⌘ + HJKLFocus left, down, up, right (H J K L work like the arrows)
⌃⌥⇧ + HJKLMove left, down, up, right

You can change any of them, or clear one with ⌫, in Settings › Shortcuts. Forgot one? They are all listed there, and Help › Getting Started in Bower's menu walks you through the first moves again. The full guide