อักษรหัวเรื่อง
Applies editorial title styling: significant words are capitalised while short joining words stay lowercase unless they open the title. This is the convention most style guides expect for articles, essays and headlines.
the art of writing a good headlineThe Art of Writing a Good HeadlineWhich words stay lowercase
Articles (a, an, the), short prepositions (of, in, on, to, for) and coordinating conjunctions (and, but, or) are left lowercase in the middle of a title. Everything else is capitalised, and the first word is always capitalised regardless of what it is.
Title case is not one rule
AP, Chicago and MLA disagree on details — most visibly on prepositions of four or more letters, which Chicago lowercases and AP capitalises. This tool follows the widely used convention of lowercasing short function words. If you are writing to a specific guide, treat the output as a strong first pass.