Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, and sentence case.
How to use this tool & FAQs
Click any question below to expand its guide and answer
Choose a case style
Whitespace, punctuation and emoji remain in place. Unicode case conversion is locale-independent: characters such as ß can expand to SS. Title case lowercases words and capitalizes each word's first letter; it does not follow a publisher's headline style or preserve acronyms.
Sentence case lowercases text and capitalizes the next letter after . ! ? or a line break. It does not understand abbreviations, proper names or grammar; review results. Inverting case is not necessarily reversible because Unicode mappings can change length. Output is limited to 2 MiB; copy or download plain text.