Capitalize My Title: Your Quick Title Formatter

Why APA, MLA, Chicago, and AP disagree

Style guides don't share one rulebook for title case. APA and AP capitalize any word of 4 or more letters even if it's a preposition ("With" gets capitalized), while MLA and Chicago capitalize almost everything except a fixed list of short articles, conjunctions, and prepositions regardless of length. That's why the same title can come out differently depending on which guide you pick.

Worked example

Input: a tale of two cities, APA style.

• "a" — first word, always capitalized → "A"
• "tale" — not a small word → "Tale"
• "of" — in APA's lowercase list and under 4 letters → stays "of"
• "two" — not in the lowercase list → "Two"
• "cities" — last word, always capitalized → "Cities"

Result: A Tale of Two Cities. Run the same input through MLA or Chicago and you get an identical result here, since "of" is on every guide's lowercase list — the styles only diverge on borderline words like "into," "onto," or "over."

Hyphenated words

The converter capitalizes each segment of a hyphenated word separately (so "state-of-the-art" becomes "State-of-the-Art" under rules that keep "of" and "the" lowercase), except when the hyphenated word opens the title, where only the first segment is forced uppercase.

What it won't get right

The tool has no dictionary of proper nouns, so it will lowercase "iphone" or "nasa" the same way it treats any other short word, and it can't detect subtitles that should restart capitalization after a colon. Check names, acronyms, and brand terms by hand after converting.