Title Case Converter
Paste a headline and get it capitalized the way Chicago, AP, APA or MLA want it. You also see it as a Google result, with the point where Google cuts it.
Result
Every style at once
Highlighted letters are the ones each style changed from what you typed. Click a style name to use it above.
What title case is
Title case means capitalizing the main words of a headline and leaving the small words, like a, of and to, in lowercase. Every style guide agrees on that idea and disagrees on the details: which small words stay lowercase, and whether length decides it. That is why the same headline can be correct in Chicago and wrong in AP.
The rules each style uses
| Style | Lowercase unless first word | Always capitalized |
|---|---|---|
| Chicago | Articles, all prepositions regardless of length, and, but, for, or, nor | First and last word, nouns, verbs (including is and be), adjectives, adverbs, pronouns |
| AP | Articles, prepositions and conjunctions of three letters or fewer | First and last word, any word of four letters or more |
| APA | Articles, short prepositions and conjunctions of three letters or fewer | First word, words of four letters or more, the first word after a colon, both parts of a hyphenated major word |
| MLA | Articles, all prepositions, coordinating conjunctions (and, but, for, nor, or, so, yet), to in infinitives | First and last word, the first word after a colon |
| Sentence case | Everything except the first word and proper nouns | First word, the first word after a colon |
The quickest way to see the difference is a preposition of four letters or more. "What to Know About It" is correct in AP and APA, while Chicago and MLA write "What to Know about It".
Words this converter leaves alone
Acronyms and brand names with their own capitals, like SEO, URL, iPhone or JavaScript, keep their spelling when "Keep words in ALL CAPS" is on. Web addresses and email addresses are not touched either. If you paste a headline written entirely in capitals, the converter treats it as plain text so it does not keep every word uppercase.
Phrasal verbs are the one place software cannot be perfect. In "Set Up Your Account", up is part of the verb and gets a capital. In "Up the Hill", it is a preposition. The converter capitalizes words like up, out, off, down and over because they are most often used as part of a verb in headlines. Check those by eye.
Title case and SEO
Google does not rank a page higher for capitalizing its title. Capitalization still affects the click: a headline in consistent title case reads as edited, and the capitals make the result easier to scan on a busy results page. What matters more for SEO is length. Google shows roughly 600 pixels of a title on desktop, so the preview above marks where your headline would be cut. Put the words people search for before that mark.
Pick one style for a whole site and stay with it. Most English blogs use Chicago or AP. News sites lean toward sentence case.