Convert text to uppercase, lowercase, title case or sentence case without touching punctuation or spacing.
Calculations happen locally. We do not send your values to our server.
Starting from “hello WORLD. this is a TEST of case-conversion”, uppercase gives “HELLO WORLD. THIS IS A TEST OF CASE-CONVERSION”, title case gives “Hello World. This Is A Test Of Case-Conversion”, and sentence case gives “Hello world. This is a test of case-conversion”.
Uppercase and lowercase use the browser’s locale-aware casing. Title case capitalises the first letter after a space or hyphen, while sentence case lowercases everything and then capitalises the first letter of each sentence.
Punctuation, numbers, spaces and line breaks are left unchanged, so the tool is safe for lists, headings and code comments where only the letters should change. The original text is not modified and stays in the page unless you copy the result.
Choose uppercase, lowercase, title case or sentence case. Starting from “hello WORLD. this is a TEST of case-conversion”, uppercase gives HELLO WORLD. THIS IS A TEST OF CASE-CONVERSION, and lowercase gives every letter in small form. Punctuation, numbers, spaces and line breaks are left unchanged, so the tool is safe for lists, headings and code comments where only the letters need changing. Copy the result when it looks right; the original text is not modified.
Title case capitalises the first letter after a space or hyphen, giving “Hello World. This Is A Test Of Case-Conversion”. It does not follow AP, Chicago or APA headline rules, so short words such as a, of and the are capitalised too: “the lord of the rings” becomes “The Lord Of The Rings”. Edit those small words by hand if your style guide keeps them lowercase. Sentence case lowercases the text and capitalises only the first letter of each sentence.
Because sentence case first lowercases everything, proper nouns and acronyms lose their capitals: “I met NASA in Paris.” becomes “I met nasa in paris.” Restore names, brands such as iPhone and abbreviations such as UK or PDF after converting. Case rules also depend on language: German capitalises all nouns, and some languages have special letters such as the Turkish dotted and dotless i, which the browser handles according to its own language settings.
| Input | Result |
|---|---|
hello WORLD. this is a TEST of case-conversion → UPPERCASE | HELLO WORLD. THIS IS A TEST OF CASE-CONVERSION |
hello WORLD. this is a TEST of case-conversion → lowercase | hello world. this is a test of case-conversion |
hello WORLD. this is a TEST of case-conversion → Title Case | Hello World. This Is A Test Of Case-Conversion |
hello WORLD. this is a TEST of case-conversion → Sentence case | Hello world. This is a test of case-conversion |
the lord of the rings → Title Case | The Lord Of The Rings |
I met NASA in Paris. → Sentence case | I met nasa in paris. |
No. It applies one mechanical rule rather than AP, Chicago or APA headline style, so short words are capitalised too: “the lord of the rings” becomes “The Lord Of The Rings”. If your style guide keeps a, of and the in lowercase, edit those words by hand afterwards.
Because sentence case lowercases the text before capitalising each sentence opening, so “I met NASA in Paris.” becomes “I met nasa in paris.” Restore names, brands such as iPhone and abbreviations such as UK or PDF after converting.
Casing depends on the language, and the browser applies its own language settings. German capitalises all nouns, which no automatic rule here restores, and Turkish has a dotted and a dotless i that behave differently from English. Check the result when you work outside English.