Convert Text to Uppercase
Paste your text and get ALL CAPS back instantly, with live preview as you type.
Uppercase text
How to convert text to uppercase
Paste your text into Your text, or press Load example. The ALL CAPS version
appears next to it and updates as you type. Copy the result or download it as a .txt file.
Everything runs in your browser, so nothing you paste is uploaded.
Examples
| Input | Output |
|---|---|
| hello world | HELLO WORLD |
| Mixed CASE 123! | MIXED CASE 123! |
| café naïve | CAFÉ NAÏVE |
Limits and edge cases
- Only letters with an uppercase form change. Numbers, punctuation, spaces and emoji stay the same.
- Conversion is Unicode-aware: accented letters keep their accent (é becomes É).
- The German ß becomes SS, which is the standard Unicode uppercase mapping.
- To go back, use Convert Text to Lowercase once it is live.
Frequently asked questions
How do I convert lowercase text to uppercase?
Paste the text into the input box and the uppercase version appears instantly in the result box. Copy it or download it as a .txt file.
Does it handle accents and non-English letters?
Yes. Conversion is Unicode-aware, so cafe with an accent becomes CAFE with the accent kept (café becomes CAFÉ). Emoji and symbols pass through unchanged.
What happens to numbers and punctuation?
Nothing. Only letters with an uppercase form change. Numbers, spaces, line breaks, punctuation and emoji stay exactly as they are.
Why did ß become SS?
The German sharp s (ß) has no single-character uppercase form in most conversions, so the standard uppercase mapping is the two letters SS. That is correct Unicode behavior.
Is my text uploaded anywhere?
No. Conversion runs in your browser with JavaScript and nothing is sent to a server. Inputs under 200 KB are kept in your browser's local storage so they are still there when you come back.
How do I convert back to lowercase?
Use the Convert to Lowercase tool, which does the reverse conversion with the same live preview.