Title Case Converter

Title case is not one rule but several competing ones, which is why headlines across a single site so often look inconsistent. All the major style guides capitalise the first and last word plus the significant words, and then disagree about the rest. AP capitalises prepositions of four letters or more, so it writes "Over" but not "With"; Chicago lowercases all prepositions regardless of length. APA uses a four-letter threshold across all minor words. None of them is wrong — but mixing them within one publication is visibly untidy.

The words that cause trouble are short and common. Articles (a, an, the), coordinating conjunctions (and, but, or, nor), and short prepositions (of, in, on, to, at, by) stay lowercase in the middle of a title under every convention. The genuine ambiguity sits with words that change part of speech: "up" is a preposition in "Head Up the Stairs" and an adverb in "Speed Up Your Site", and only the second is normally capitalised. No automated pass can resolve that without understanding the sentence.

So treat the output as a fast first pass and keep a short override list. Acronyms need protecting from lowercasing, brand names often have deliberate casing that any converter will flatten — iPhone, eBay, danceON — and hyphenated compounds vary by guide. Pick one style guide, write down your exceptions once, and apply them consistently; the consistency matters far more to how professional a site looks than which guide you chose.