The shortcut is: Alt + Shift + F

The code formatting is available in Visual Studio Code through the following shortcuts:

• On Windows Shift + Alt + F
• On Mac Shift + Option + F
• On Linux Ctrl + Shift + I

Alternatively, you can find the shortcut, as well as other shortcuts, through the submenu View / Command Palette, also provided in the editor with Ctrl + Shift + P (or Command + Shift + P on Mac), and then searching for format document.

For unsaved snippets

1. Open command palette (Win: F1 or Ctrl + Shift + P)

2. Find "Change Language Mode"

3. Select language e.g. json. By now, the syntax should be highlighted.

4. Format document (e.g. Open Command Palette -> "Format Document")

Unformat

1. Select text
2. Command Palette -> Join Lines

'Show the pics'

I have
Ctrl + K, Ctrl + F
to format the selected text
or
Ctrl+ K, + Ctrl + D for the document :

Formatting Code in Visual Studio can be done using the Keyboard shortcuts as below

• On Windows Shift + Alt + F
• On Mac Shift + Option + F
• On Ubuntu Ctrl + Shift + I

you can also find these as well as other shortcuts, through the search functionality provided in the editor with Ctrl +Shift+ P (or Command + Shift + P on Mac), and then search for format document.

Source

For Php developer, if you are working on php you should download php extension format code.

Press F1 and type : ext install PHP Code Format .

Then Shift + Alt + F will work

You can add a keybinding in Preferences --> Keyboard shortcuts.

{ "key": "cmd+k cmd+d", "command": "editor.action.formatDocument" }

Or Visual Studio like:

{ "key": "ctrl+k ctrl+d", "command": "editor.action.formatDocument" }