Learn Vim / How to Change Case in Vim (Uppercase / Lowercase)

How to Change Case in Vim (Uppercase / Lowercase)

The answerPress ~ to toggle the case of the character under the cursor. For bigger targets: gUiw uppercases the word, guiw lowercases it.

All the ways

Keys	What it does
`~`	toggle case of one character
`gUiw`	UPPERCASE the word under the cursor
`guiw`	lowercase the word
`gUU`	UPPERCASE the whole line
`Vu / VU`	lowercase / uppercase the visual selection

Reading about keystrokes doesn't build keystrokes. Try this in a real vim buffer right now — the “One-letter fix” mission takes about a minute.