TEXT & WRITING
Case Converter
Choose a letter style, then type or paste text. The converted result updates in your browser as you edit.
Your text stays in this page. Line breaks, spaces, and punctuation are kept.
How the case options work
- Uppercase and lowercase use JavaScript's Unicode case mappings for the whole text.
- Title Case capitalizes the first Unicode letter in each run of letters or numbers. Internal apostrophes stay within a word; hyphens and other punctuation separate words. Other letters keep their original case.
- Sentence case lowercases the text, then capitalizes the first letter and the first letter after a run of
.,?, or!followed by whitespace or the end of the text. This simple boundary rule does not identify every sentence or abbreviation. - Toggle Case changes each cased Unicode letter to its opposite case. Some Unicode mappings can expand one character into more than one, such as
ßbecomingSS.