How to Fix Text You Accidentally Typed in All Caps
It happens to everyone: you look up and find that an entire email, comment, or document has been typed in capitals. The instinct is to select it all, delete, and start again. Do not — every tool you already have can fix it in seconds.
The fastest fix: paste it into a converter
This works everywhere, in any application, on any device:
- Select the all-caps text and copy it.
- Paste it into the box on the converter.
- Click Sentence case to get normal prose, or lower case for all-lowercase.
- Copy the result and paste it back where it came from.
Sentence case is almost always what you want — it capitalises the first letter of each sentence and lowercases everything else, which is how ordinary writing looks. Plain lowercase is right when the text is going into a URL, a username field, or a data column.
In Microsoft Word: Shift + F3
Select the text and press Shift + F3. Each press cycles through three states: lowercase, Capitalize Each Word, and UPPERCASE. On a Mac, use Fn + Shift + F3 if your function keys are set to media controls.
For more control, use Home → Change Case (the Aa button), which adds Sentence case and tOGGLE cASE to the list. The Shift+F3 cycle notably does not include sentence case, which is why the menu is often the better route.
In Google Docs: Format → Text → Capitalization
Select the text, then Format → Text → Capitalization and pick Sentence case, lowercase, or UPPERCASE. There is no default keyboard shortcut, though you can assign one through a small Apps Script if you do this often.
In Excel and Google Sheets: three formulas
Spreadsheets have no in-place case command, so you convert into a helper column:
=LOWER(A1)— all lowercase=UPPER(A1)— ALL UPPERCASE=PROPER(A1)— Capitalises Each Word
Fill the formula down the column, then copy the results and use Paste Special → Values over the original column before deleting the helper. Note there is no built-in sentence-case formula in either program — for that, paste the column into the sentence case converter and paste the result back.
The one thing no tool can do for you
Converting from all caps loses information permanently. "JOHN SMITH VISITED PARIS IN MAY" contains no signal about which words were proper nouns, so any automatic conversion produces "John smith visited paris in may" or "john smith visited paris in may" — never the correct capitalisation.
This is not a limitation of a particular tool; the original capitalisation genuinely is not recoverable from the text. Convert first to get the sentence structure right, then do one quick read-through to fix names, places, and the pronoun "I". It takes a fraction of the time retyping would.
Preventing the next one
On macOS you can remap Caps Lock entirely under System Settings → Keyboard → Keyboard Shortcuts → Modifier Keys — setting it to "No Action" or Escape is popular among people who never use it deliberately. On Windows, PowerToys' Keyboard Manager does the same. Many developers remap it to Ctrl, which puts a useful modifier under the strongest finger and eliminates the accident entirely.