How to convert text to uppercase
- Paste or type your text in the box.
- Press the highlighted UPPERCASE button, which comes first; the other case styles sit beside it, and Undo restores the original.
- Press Copy and paste the capitalised text wherever you need it.
When to use capital letters
Uppercase text is useful for headings, labels, signs, product codes, postcodes, legal notices that must stand out, and form fields that require block capitals. It saves you from retyping a paragraph after accidentally writing it in lowercase, and handles accented letters correctly, so é becomes É and ß becomes SS following standard Unicode rules.
Use all caps sparingly in messages and emails: long passages are harder to read, because words lose their distinctive shapes, and online it is often read as shouting. For emphasis, a few capitalised words or bold text work better. In design, uppercase headings look best with a little extra letter spacing.
The conversion happens in your browser, so even confidential text is never uploaded.
FAQ
How do I change lowercase to uppercase in Word?
Select the text and press Shift+F3 to cycle through cases, or paste it here and copy the result.
Does it work with other languages?
Yes. Accented Latin letters, Greek and Cyrillic are converted using standard Unicode case rules.
Is all caps bad for readability?
For long text, yes. It is best for short headings, labels and warnings.