Step by step
- Highlight the text you want to change in your Word document.
- Press Shift + F3 on Windows (or Fn + Shift + F3 on Mac) to cycle through lowercase, UPPERCASE, and Capitalize Each Word.
- Alternatively, click the Change Case icon (Aa) in the Font group on the Home tab to pick Sentence case, lowercase, UPPERCASE, Capitalize Each Word, or tOGGLE cASE.
- In Word for the web, select the text and use the Change Case button on the Home tab, since browser shortcuts may intercept F3.
At a glance
| Platform | Shortcut or menu | What it does |
|---|---|---|
| Word for Windows | Shift + F3 | Cycles lowercase, UPPERCASE, Capitalize Each Word |
| Word for Mac | Fn + Shift + F3 | Cycles lowercase, UPPERCASE, Capitalize Each Word |
| Word ribbon (all) | Home > Change Case (Aa) | Lets you pick Sentence case or tOGGLE cASE too |
| Word for the web | Home > Change Case (Aa) | Avoids browser F3 find-in-page conflict |
Where to find it on your device
- Word (Windows & Mac): Home > Font > Change Case (Aa)
- Word for the web: Home > Change Case (Aa)
Related questions
How do I change uppercase to lowercase in Word?
Select the uppercase text and press Shift + F3 until it switches to lowercase, or open Home > Change Case (Aa) and choose lowercase.
What is the Word change case shortcut on Mac?
Press Fn + Shift + F3 after selecting your text. If your Mac function keys are set to standard F-keys in System Settings, Shift + F3 alone works.
Why does Shift + F3 not work in Word Online?
Web browsers reserve F3 and Shift + F3 for searching the page. Use the Change Case (Aa) button on the Home tab instead.
More questions: case converter
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Open the full case converter →
Updated November 14, 2026.