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Title Case, by the book you follow.

Change text to Title Case in AP, APA, Chicago or MLA style, or to UPPER, lower and Sentence case, keeping names like iPhone and NASA as they are written.

By 4 min read

A text box with a line under it that says 1,204 words, about 5 minutes to read, beside cards for counting, capitals, comparing and tidying.

Every style guide capitalises the important words of a title. They differ on the small ones: is it “A River Runs Through It” or “A River Runs through It”? The case converter follows the guide you choose, and says where a list of words cannot be sure.

Four styles, and how they differ.

APA and AP keep articles, short conjunctions and prepositions of three letters or fewer small (a, the, and, for, in, of, to) and capitalise every other word. Chicago and MLA keep every preposition small however long it is (through, between, according to). AP, Chicago and MLA capitalise the last word whatever it is (“What Are You Looking For”), and all four capitalise the first word and the first word after a colon or a dash.

iPhone stays iPhone.

Words written with capitals inside them (iPhone, eBay, NASA, McDonald) and web and email addresses are kept as written in Title and Sentence case. When a whole text is in capitals, those capitals say nothing, so it is made small first: “A STUDY OF CATS” becomes “A Study of Cats”. Upper and lower case follow the rules of the language you choose, so Turkish i becomes İ.

What a list cannot know.

The guides capitalise a small word when it does a bigger job: “up” is a preposition in “Up the Hill” but part of the verb in “Look Up”. Telling them apart needs to know what each word does in the sentence, which a list of words cannot. Read the result, and change a word by hand if needed; Undo puts the whole text back.

For code, too.

Under More options are camelCase, snake_case, kebab-case and CONSTANT_CASE, and slugs for web addresses (Crème Brûlée becomes creme-brulee). They work line by line, so a list of names changes at once.

Nothing leaves your browser.

Everything is worked out on your device: what you paste, type or open is never sent anywhere, and nothing is kept when you leave the page. There are no adverts, no accounts and no limits on length.

Further reading

Topics: title case converter · case converter · capitalize title · apa title case · chicago title case · sentence case · title case vs sentence case · sentence case apa · uppercase to lowercase

A little less theory. A little more doing.

Try it on your own terms, with a free browser tool.

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