Case Converter
Fix accidental caps lock, format a headline or normalize pasted text. The Case Converter switches your text between UPPERCASE, lowercase, Title Case and Sentence case instantly.
How to use the Case Converter
- Paste or type your text.
- Click the case you want — the text converts in place.
- Copy the result and paste it wherever you need it.
Title Case follows the common convention of keeping small words like “and”, “of” and “the” lowercase unless they come first.
What each case does
UPPERCASE converts all letters to capitals — useful for headings, labels or text that needs to appear in all caps.
lowercase converts all letters to lowercase.
Title Case capitalises the first letter of each word, but keeps short function words lowercase unless they start the text: a, an, and, as, at, but, by, for, in, nor, of, on, or, so, the, to, up and yet.
Sentence case lowercases everything, then capitalises the first letter of the text and the first letter after . ! ? … followed by a space or line break.
Title Case
Before: the quick brown fox. jumps over the lazy dog!
After: The Quick Brown Fox. Jumps Over the Lazy Dog!
Sentence case
Before: the quick brown fox. jumps over the lazy dog!
After: The quick brown fox. Jumps over the lazy dog!
Title Case vs Sentence case
Title Case capitalises most words, so it suits book titles, headings and labels. Sentence case capitalises only the starts of sentences, which reads more naturally in body copy.
There is no single universal Title Case standard — different style guides keep different words lowercase. LetterTrove follows the common convention above; if your publisher’s house style differs, adjust the result by hand.
Punctuation, numbers and limitations
- Apostrophes inside a word are left alone, so don’t becomes Don’t in Title Case.
- Hyphenated parts are not re-capitalised, so well-being becomes Well-being (the b stays lowercase).
- Numbers and symbols are untouched; only letters change case.
- Sentence case only capitalises after . ! ? … — not after colons, semicolons or newlines on their own.
- Title Case is automated, so all-caps acronyms inside a title won’t be preserved.