Title case converter

What title case is

Title case is the convention of capitalizing the important words in a headline while leaving the minor ones — short articles, conjunctions, and prepositions — in lowercase. It's what separates 'The Complete Guide to Light Roast Coffee' from a sentence-cased or all-lowercase line.

For SEO, consistent title case isn't a ranking factor, but it's a polish factor. Headlines, H1s, and title tags written to a single, deliberate style look professional and trustworthy in the search results — and a listing that reads as credible earns more clicks than one with sloppy, inconsistent capitalization.

AP vs Chicago vs APA

All three major styles agree on the basics — capitalize the first word, the last word, and every major word. They diverge on how they treat 'minor words', which is exactly where manual capitalization goes wrong.

• AP style — the newsroom default; lowercases prepositions of three letters or fewer. Best for blog and news headlines.
• Chicago style — lowercases every preposition regardless of length. Best for books, essays, and long-form.
• APA style — academic; lowercases minor words of three letters or fewer and capitalizes the first word after a colon.
• Sentence case — only the first word (and proper nouns) capitalized; increasingly common for UI and meta descriptions.

How to use the title case converter

Paste one headline or many — one per line — into the box. The converter instantly shows each line in AP, Chicago, and APA title case, plus sentence case, all-caps, and lowercase, with a copy button on every result.

The rules and minor-word lists are built into the page, so conversion is instant and private. Acronyms typed in capitals — SEO, FAQ, HTML — are detected and preserved rather than mangled into 'Seo', and hyphenated words are capitalized on both sides of the hyphen.