How to use
- Paste text.
- Choose a case. The output updates immediately; copy it.
Worked example
“the lord of the rings: the return of the king” in Chicago title case is “The Lord of the Rings: The Return of the King”.
Supported formats and limits
| Input | Text |
|---|---|
| Output | Text |
| Engine | Rule-based casing with small-word lists for title styles |
Limitations
- Sentence case lowercases proper nouns such as Paris. Keep acronyms preserves only all-capital words (NASA) and mixed-case words (iPhone).
Questions
What is the difference between AP and Chicago title case?
Both capitalize the main words. AP lowercases articles and conjunctions or prepositions of three letters or fewer. Chicago lowercases articles, prepositions of any length (such as about or between), and and, but, for, or and nor. The first and last words, including those next to a colon, are always capitalized.
Will acronyms and names survive?
With Keep acronyms on (the default), words in capitals such as NASA and mixed-case words such as iPhone are kept. Ordinary proper nouns are not recognized, so check names after sentence case.
How are code identifiers split?
Spaces, punctuation, camelCase humps and acronym boundaries all start a new word, so “XMLHttpRequest id” becomes xml_http_request_id in snake_case.
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