Instant Title Capitalizer

AP Title Case

• Capitalize the first and last words.
• Capitalize principal words.
• Capitalize “to” in infinitives.
• Capitalize all words of four letters or more.Lowercase articles, conjunctions, and prepositions of three letters or fewer.

AMA Title Case

• Capitalize the first word of titles and subtitles.
• Capitalize major words.
• Lowercase coordinating conjunctions, articles, and prepositions of three or fewer letters.
• Do not capitalize “to” in infinitives.
• Capitalize both parts of hyphenated compounds.
• Capitalize the genus but not the species epithet.

APA Title Case

• Capitalize the first word of a title or subtitle.
• Capitalize the first word after a colon, em dash, or end punctuation.
• Capitalize nouns, verbs, adjectives, adverbs, and pronouns.
• Capitalize all words of four letters or more.Lowercase articles, conjunctions, and prepositions of three letters or fewer.
• Capitalize the second part of hyphenated major words.
• Lowercase the second part of a Latin species name.

CMoS Title Case

• Capitalize the first and last words of titles and subtitles.
• Capitalize nouns, pronouns, verbs, adjectives, adverbs, and some conjunctions.
• Capitalize prepositions with five or more letters.
• Lowercase articles and prepositions of four letters or fewer, except in Latin expressions.
• Do not capitalize “to” in infinitives or “as” in any grammatical function.
• Lowercase parts of proper names typically lower-cased in text.
• In hyphenated compounds, capitalize the first element and subsequent major words unless they are articles, prepositions, or conjunctions.

NYT Title Case

• Capitalize nouns, pronouns, and verbs.
• Capitalize all words of four or more letters.
• Capitalize no, nor, not, off, out, so, and up.
• Lowercase a, and, as, at, but, by, en, for, if, in, of, on, or, the, to, v., vs., and via, except when used as adverbs.
• Capitalize for if it replaces a verb meaning “support” or “advocate.”
• In hyphenated compounds, lowercase the second part if it follows a short prefix or doubles vowels; otherwise, capitalize it.

MLA Title Case

• Capitalize the first and last words of titles and subtitles.
• Capitalize nouns, pronouns, verbs, adjectives, adverbs, and subordinating conjunctions.
• Lowercase articles, prepositions, and coordinating conjunctions.
• Do not capitalize “to” in infinitives.
• Capitalize principal words following hyphens in compound terms.
• Lowercase the word after a hyphenated prefix if the unhyphenated form exists.