Title Capitalization Tool

Chicago: Capitalizes all major words (nouns, pronouns, verbs, adjectives, adverbs) and lowercases articles, coordinating conjunctions, and prepositions (unless first/last word).
APA: Similar to Chicago but capitalizes words with 4+ letters, including prepositions.
MLA: Capitalizes first, last, and all principal words. Lowercases articles, prepositions, and conjunctions unless they start/end the title.
AP Style: Capitalizes words with 3+ letters. Used in journalism.

Articles (a, an, the), coordinating conjunctions (and, but, or, for, nor, so, yet), and short prepositions (in, on, at, by, for, of, to, up, as) are typically lowercase unless they're the first or last word. The exact rules vary by style guide. For example, Chicago lowercases prepositions of 3 letters or less, while APA capitalizes all words with 4+ letters regardless of their grammatical function.

For hyphenated compounds, capitalize both parts in most styles (e.g., "Well-Known," "Self-Contained"). However, if the second part is a single word that's normally lowercase (like a preposition or article), it may remain lowercase (e.g., "Mother-in-law," "Run-in"). Always capitalize the first element. Our tool follows these conventions based on the selected style guide.

Use Email Subject capitalization for marketing emails, newsletters, and promotional content where you want maximum impact. This style capitalizes all important words for better readability in inboxes. Use Chicago/APA/MLA for formal writing, academic papers, and professional publications. Use AP Style for journalism, news articles, and online content following journalistic standards.