Keyboard shortcuts

On a Mac, read ⌘ for Ctrl and ⌥ for Alt.

Everywhere in the editor

Shortcut	Action
`Ctrl+Enter`	Compile the document now

Formatting text

Select text first.

Shortcut	Action
`Ctrl+B`	Bold
`Ctrl+I`	Italic
`Ctrl+U`	Underline
`Ctrl+Shift+X`	Strikethrough
`Ctrl+Shift+S`	Strikethrough (alternative; some browsers reserve it)
`Ctrl+Z`	Undo, in the block you are typing in
`Ctrl+Shift+Z` or `Ctrl+Y`	Redo

Inserting into a sentence

Shortcut	Action
`Ctrl+M`	Insert a formula
$…$	Type a formula between dollar signs: it converts as you close it
`Ctrl+Shift+F`	Insert a footnote
`Ctrl+Alt+R`	Insert a cross-reference
`Ctrl+Alt+C`	Insert a citation

Paragraphs and headings

Key	Action
`Enter`	Start a new paragraph below
`Shift+Enter`	Break the line inside the paragraph
`Backspace` in an empty block	Delete the block
`/` in an empty block	Open the menu that turns the block into another type

The `/` menu

Key	Action
Any letters	Filter the types by name ("the" → Theorem)
`↑` `↓`	Move through the types left in the list
`Enter`	Turn the block into the highlighted type
`Esc`	Close the menu and go back to the block
`Backspace` in an empty filter	Close the menu and go back to the block

Lists

Key	Action
`Enter`	Start a new item

Theorems and other statements

Key	Action
`Enter`	Add a line to the statement
`Enter` on the empty last line	Leave the statement and continue below it
`Esc`	Close the kind menu

Equations

Key	Action
`Tab`	Jump to the next empty `{}` of a command; from the last one, step out of it
`Shift+Tab`	Jump to the previous empty `{}`
`Enter`	Add a line to the formula's source
`Enter` on an empty last line	Leave the equation and start a paragraph
`Backspace` in an empty equation	Delete the block

Formulas, footnotes and pickers

These open in a small panel.

Key	Action
`Enter`	Close the panel and keep what you typed
`Shift+Enter`	Add a line to a formula's source
`Tab` / `Shift+Tab`	In a formula: next / previous empty `{}` of a command
`Esc`	Close the panel

Figures

Key	Action
`Enter` in the caption	Continue below the figure
`Backspace` in an empty caption	Delete the figure

Tables

Key	Action
`Tab`	Next cell
`Shift+Tab`	Previous cell
`Enter`	Cell below; on the last row, add a row
`Shift+Enter`	Break the line inside the cell (up to 6 lines)

Code

Key	Action
`Tab`	Indent by two spaces
`Enter`	New line
`Esc`	Leave the listing and continue below it
`Backspace` in an empty listing	Delete the block

PDF tab

Key	Action
`Ctrl` + mouse wheel	Zoom the page in or out, around the pointer

Title page

Key	Action
`Enter` in an author	Add the next author
`Backspace` in an empty author	Remove that author

Moving blocks with the keyboard

Key	Action
`Tab` to a block's handle, then `Space`	Pick the block up
`↑` `↓`	Move it
`Space`	Drop it
`Esc`	Cancel

What has no shortcut

Inserting a block of a given type, picking a symbol in the library, changing a heading's level, switching tabs and downloading the PDF are done with the mouse.

This list is also in the editor: Help & shortcuts, at the bottom of the left column.