Convert text into proper Title Case following real editorial style guides — not just "capitalize every word".
Style guides:
- AP — Associated Press newsroom rules. Short function words (articles, short prepositions, conjunctions) stay lowercase unless first or last in the title.
- Chicago — Chicago Manual of Style. Broader set of lowercase function words including longer prepositions; preferred for academic and book titles.
- Wikipedia — Wikipedia article-title conventions, a middle-ground set of lowercase words.
- Simple — capitalizes every word (no function-word rules). Equivalent to a naive title-caser.
Common rules applied to all styles:
- The first and last words are always capitalized.
- Words after a colon (
:), em-dash, or sentence-ending punctuation are capitalized (subtitle behavior).
- Hyphenated words capitalize each part (
well-being → Well-Being).
- Contractions and possessives (
don't, o'clock) are handled intact.
Good to know:
- This differs from the basic "Text Case Converter" tool, which capitalizes every word with no awareness of function words. Use this tool when titles need to look professionally edited.
- Proper nouns and acronyms are normalized to the chosen style (e.g.
NASA → Nasa in AP). If you must preserve specific capitals, capitalize-sentences is not it — apply Title Case and fix the few proper nouns manually.