Instant title case — small words stay lowercase, every time
Style guide
Small words kept lowercase (Chicago Style)
The first and last word of every title are always capitalised, regardless of this list. Words following sentence-ending punctuation (. ! ?) are also capitalised.
The Title Case Converter instantly formats any heading, article title, or book name using the correct capitalization rules for AP, APA, Chicago, or MLA style. Small words like a, an, the, of, and and are automatically kept lowercase — unless they open or close the title. Paste multiple lines at once and copy the results in one click.
It depends on the style guide. Most guides lowercase articles (a, an, the), short prepositions (in, of, on, by, to), and coordinating conjunctions (and, but, or, nor). The first and last word of any title are always capitalized, regardless of which word they are.
The guides differ mainly in which prepositions and conjunctions they lowercase. AP and MLA lowercase short coordinating conjunctions and prepositions. Chicago additionally lowercases 'so', 'yet', 'per', and 'via'. APA follows a similar broad approach. Use the style required by your publisher, institution, or publication.
Yes. Each part of a hyphenated compound (e.g. 'well-known') is capitalized independently, following standard title-case practice — the first part is always capitalized, and subsequent parts follow the minor-word rules.
No. The converter detects words that are already written in all uppercase letters and leaves them untouched, so acronyms like NASA, API, or HTML remain as-is in the output.