Uppercase Converter
Uppercase, also called all caps, is text in which every letter is a capital letter. This uppercase converter changes each lowercase letter to its capital form, accented letters included, and leaves numbers, punctuation, spacing, and line breaks exactly as you typed them, so lists and paragraphs keep their layout.
Uppercase Converter examples
| Case | Input | Output |
|---|---|---|
| Colon | breaking news: council approves budget | BREAKING NEWS: COUNCIL APPROVES BUDGET |
| Apostrophe and hyphen | don't miss the follow-up | DON'T MISS THE FOLLOW-UP |
| Acronyms | the fbi and nasa sign a deal | THE FBI AND NASA SIGN A DEAL |
| Accented letters | café déjà vu | CAFÉ DÉJÀ VU |
| German ß | straße | STRASSE |
| Numbers and symbols | order #42 ships in 3-5 days | ORDER #42 SHIPS IN 3-5 DAYS |
Uppercase Converter rules
- Every lowercase letter becomes its capital form, in any alphabet that has capital letters (Latin, Greek, Cyrillic).
- Capital letters, numbers, punctuation, symbols, and emoji stay as they are.
- Spacing and line breaks are kept, so paragraphs and lists keep their layout.
- A few letters change length: the German ß becomes SS, following the Unicode case rules your browser applies.
- Converting to uppercase loses the original capitalization of names and acronyms. Another case tool cannot restore it; use Undo to get your original text back.
How to use
Type or paste your text into the editor.
Press UPPERCASE to convert the text in place. Pasted text converts at once.
Copy the result, or use Undo to go back to your original text.
When to use Uppercase Converter
Editors and writers
Short labels, kickers, and notices where your house style calls for all caps.
Designers
Button labels, signs, and banners. On a web page, CSS text-transform: uppercase changes how text looks without changing the text itself.
Developers
Normalizing codes such as airport, country, or currency codes before comparing them.
Data cleanup
Making a column of state abbreviations, SKUs, or postal codes consistent before import.
FAQ
Paste your text into the editor above. Pasted text is converted to uppercase at once (for typed text, press UPPERCASE), and the Copy button puts the result on your clipboard.
No. Only letters change. Numbers, punctuation, symbols, emoji, spaces, and line breaks stay exactly as they were.
Yes. Accented Latin letters (é becomes É) and other alphabets with capital letters, such as Greek and Cyrillic, are converted. The German ß becomes SS.
Use Undo to get your original text back. If you only have the all-caps version, the Sentence Case Converter or Title Case Converter rebuilds the capitals, but names and acronyms need checking by hand.
You can convert up to 100,000 characters at a time.
The conversion runs in your browser, so your text is not uploaded to a server to be converted.