Uppercase Converter
Convert lowercase or mixed-case text to UPPERCASE while keeping numbers, punctuation, spacing, and line breaks.
Enter text to get started.
How to use Uppercase Converter
- Paste or type your input. You can also load the example below.
- Adjust the available options. Results update after you finish typing; for very large inputs, select Run.
- Review the result, then copy it or download it to your device.
Input and output examples
Convert a heading to uppercase
Input
Ready for launch!Output
READY FOR LAUNCH!Uppercase accented text and preserve numbers
Input
Café order 42Output
CAFÉ ORDER 42Letter case tools
Start with a specific case style or compare all available conversions.
How this tool works
Uppercase mode applies the browser’s Unicode uppercase mapping with the English locale to the complete input. Letters with uppercase forms are converted; punctuation, numbers, and whitespace remain in place. Some letters expand into more than one character, such as ß becoming SS. Review names and language-specific spelling before using the result.
Input and output stay in the current page. Refreshing or closing the page clears them. For very large inputs, use Run to start processing; a task that takes too long is stopped so you can change the input.
Frequently asked questions
Can I convert several lines to uppercase at once?
Yes. Paste the whole block of text. Uppercase mode converts its letters while retaining spaces and line breaks, so a list stays on separate lines.
Will uppercase conversion always keep the same character count?
No. Unicode uppercase mappings can expand a letter; for example, ß becomes SS. Digits and punctuation do not change.