Uppercase converter
Convert any text to UPPERCASE instantly, right in your browser.
How to use
- Paste or type your text into the input box.
- Choose Uppercase (or lowercase / Title Case) above the editor.
- Copy the converted result with the Copy button.
Frequently asked questions
Does it work with accented and non-English letters?
Yes. The converter is locale-aware, so accented Latin characters and other cased scripts are capitalised correctly.
Is there a limit on how much text I can convert?
No. Because the conversion runs in your browser there is no server limit; very large inputs work fine.
Is my text uploaded anywhere?
No. All processing is client-side and your text never leaves your device.
About this tool
The uppercase converter turns lowercase or mixed-case text into capital letters in a single click. It is handy for headlines, acronyms, spreadsheet labels and emphasising short phrases. Conversion is locale-aware, so accented letters such as é and ñ are capitalised correctly, while emoji and non-cased scripts are left untouched. Everything happens locally — paste as much text as you like and nothing is sent anywhere.