Title Case Converter

An AP title case converter that also supports APA, Chicago, and MLA. Small words stay small, first and last words stay large, and NASA does not become Nasa.

A title case converter is a contract with the reader: important words stand up, glue words sit down. Most online converters implement one unnamed hybrid. This one lets you choose AP, APA, Chicago, or MLA, then overlays brands so Html becomes HTML.

AP title case converter

Pick AP in the Title style control. AP generally capitalizes prepositions of four or more letters (Through, With). That is what people mean by an AP title case converter. Chicago keeps more prepositions lowercase. APA and MLA sit between those poles. First and last words are always capitalized in every guide.

Try the same headline in Sentence case if your product UI prefers a calmer voice. For URL handles derived from that title, continue to the URL slug generator. For every-word capitals, use the capital case converter.

Last reviewed 2026-09-10.

FAQ

Questions, answered

Which words stay lowercase?

Articles, coordinating conjunctions, and short prepositions — the exact list depends on the style guide you pick. The first and last words of the title are always capitalized.

What is an AP title case converter?

AP Title Case capitalizes principal words and prepositions of four or more letters (Through, With). Chicago keeps a longer list of prepositions lowercase even when they are longer (through, with, between).

Does it know proper nouns?

After the style pass, a dictionary restores terms such as iPhone, JavaScript, NASA, and place names. Toggle smart casing off for a strict mechanical result.

Can I use this for blog titles?

Yes. Paste the draft title, pick the guide your publication uses, copy the result. For a friendlier tone, compare with Sentence case on the same paste.

How are hyphenated words treated?

Chicago-style paths capitalize each segment. AP keeps short trailing segments lowercase (Follow-up vs Follow-Up).

AP title case converter

Questions, answered

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