Title Case Converter

The rule is mechanical: the first letter of every word becomes a capital and every other letter in that word becomes lowercase. It doesn't keep short words in lowercase the way many headline style guides do, so of, the, a, at and to all get a capital too.

That makes it a fast first pass, especially for ALL-CAPS headings, but most titles need a minute of hand editing afterwards.

Because the rest of each word is forced to lowercase, anything with meaningful capitals inside it gets flattened:

• Acronyms: NASA becomes Nasa, SEO becomes Seo.
• Brand names: iPhone becomes Iphone.
• Surnames: mcdonald becomes Mcdonald and o'neil becomes O'neil, since nothing after the first letter is capitalised.
• Hyphenated words get one capital at the front only: well-known becomes Well-known. Some styles want Well-Known.
• Words starting with a digit keep the digit first, so 3rd stays 3rd.

Contractions with a curly or straight apostrophe come out fine: isn’t becomes Isn’t.

The engine finds the start of a word using a pattern that only recognises the basic letters a to z, digits and the underscore. When a word starts with an accented letter, it skips that letter and capitalises the next one instead. élan vital comes out as éLan Vital, and ÜBER COOL as ÜBer Cool.

If your title has words starting with é, ü, ñ, ø or similar, check each of them and retype the first two letters by hand.

A quick routine that gets most titles right:

1. Paste the title and copy the result.
2. Lowercase the short articles, conjunctions and prepositions in the middle (a, an, the, and, but, or, of, in, on, at, to), unless your style guide says otherwise. Keep the first and last word capitalised.
3. Restore acronyms and brand names.
4. Check any word that starts with an accent.

For headings where only the first word should be capitalised, the Sentence Case Converter is the better starting point.