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Case Converter
Fix the capitalisation in one pass — paste text in, pick a case, copy the result out.
Type or paste text here, then pick a case below. The result updates as you type.
Characters
How it works
UPPERCASE = every letter uppercased lowercase = every letter lowercased Title Case = first letter of each word uppercased Sentence case = first letter of each sentence uppercased
Worked example: “hello world. this is whiteui.” in Title Case becomes “Hello World. This Is Whiteui.”, in Sentence case “Hello world. This is whiteui.”, in UPPERCASE “HELLO WORLD. THIS IS WHITEUI.” and in lowercase it stays as written. The text is 29 characters long in every case.
Frequently asked questions
What happens to names and acronyms in Title Case?
Every word is lowercased first, then its first letter is capitalised, so “NASA” becomes “Nasa”. Fix proper names by hand after converting.
Does Sentence case capitalise after every full stop?
Yes: the first letter of the text and the first letter after each full stop, question mark or exclamation mark is capitalised, and everything else is lowercased.
Are numbers and punctuation changed?
No. Only letters change case; digits, spaces and punctuation stay exactly where they are.
Is my text sent anywhere?
No. Everything runs in your browser. Nothing is uploaded, stored or logged.
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