Select to the beginning of the line

Select to the start of the line on Windows

Place the cursor anywhere in a line and press Shift+Home to highlight everything from the cursor back to the first character of that line. It works in text editors, Word, browsers and code editors. To extend the selection to the end instead, use Shift+End.

Select to the start of the line on Mac

Press ⇧⌘← (Shift + Command + Left Arrow) to select from the cursor to the beginning of the line. Note the difference from Windows: on Mac the Home key scrolls the document, so ⌘← — not Home — is "beginning of line", and adding ⇧ turns the move into a selection.

Select the whole line fast

To grab an entire line, jump to its start then select to its end: Home then Shift+End on Windows, or ⌘← then ⇧⌘→ on Mac. See also select to end of line and select by word.