Title Case Converter
Capitalize headlines and titles correctly in AP, Chicago, APA, or MLA style, right in your browser.
The Title Case Converter runs entirely in your browser. The headlines and titles you paste are capitalized on your device and are never uploaded to ArrayKit or any server.
Open the Case Converter
About Title Case Converter
The Title Case Converter capitalizes a headline or title correctly so you don't have to memorize every rule. Paste a line, pick a style — AP, Chicago, APA, MLA, or capitalize every word — and it capitalizes the first and last word, lowercases the short articles, conjunctions, and prepositions in between (a, of, to, and), capitalizes both halves of hyphenated compounds like state-of-the-art, and leaves ALL-CAPS acronyms such as NASA untouched. Each line is treated as its own title, so you can convert a whole list of headings at once. It is built for writers, editors, marketers, and developers naming articles, blog posts, page titles, and slugs. Everything runs on your device — the text you paste never leaves your browser.
Features
- Four editorial styles — AP, Chicago, APA, and MLA — plus a simple capitalize-every-word mode
- Always capitalizes the first and last word of each line, whatever the style
- Lowercases short articles, conjunctions, and prepositions in the middle (a, an, the, of, to, and)
- Capitalizes both parts of hyphenated compounds like State-of-the-Art and Well-Being
- Leaves ALL-CAPS acronyms such as NASA, FBI, and API exactly as written
- Keeps intentional mixed case like iPhone and eBay untouched
- Capitalizes the first word after a colon so subtitles read correctly
- Converts a whole list at once — each line becomes its own title
How to use the Title Case Converter
- Paste or type your headline into the input box, one title per line
- Pick a style: AP, Chicago, APA, MLA, or All words
- Read the correctly capitalized title in the result panel
- Copy the result or download every line as a text file
Example
Input
the lord of the rings: the return of the king
Output
The Lord of the Rings: The Return of the King
AP style: first and last words capitalized, short words lowercased, and the subtitle after the colon capitalized.
Common errors & troubleshooting
- A whole title pasted in ALL CAPS stays uppercase. — The tool treats every all-caps word as an acronym and leaves it alone. Retype the title in lowercase (or sentence case) first, then convert.
- A short word at the start or end stayed capitalized. — That is intended — the first and last word of a line are always capitalized, even minor words like 'The', 'A', or 'Of'.
- AP and Chicago give different results for the same title. — That is expected. AP and APA capitalize prepositions of four or more letters (Between, Through); Chicago and MLA lowercase them. Pick the style your publication requires.
- A lowercase brand name was not preserved. — Mixed-case names with a capital after the first letter (iPhone, eBay) are kept as-is, but an all-lowercase word like 'ipad' becomes 'Ipad'. Type the intended capital yourself.
Frequently asked questions
- What is the difference between AP and Chicago title case?
- The main split is prepositions. AP (and APA) capitalize prepositions of four or more letters, so you get 'Between' and 'Through', while Chicago (and MLA) lowercase prepositions regardless of length, giving 'between' and 'through'. Articles and short conjunctions are lowercased in every style.
- Does the converter capitalize the first and last word even if it is 'a' or 'the'?
- Yes. Every style always capitalizes the first and last significant word of a line, so 'the end of days' becomes 'The End of Days' — the leading 'The' is capitalized even though a mid-title 'the' would be lowercased.
- How does it handle hyphenated words like 'state-of-the-art'?
- It capitalizes both ends of the compound and lowercases the small words inside, so 'state-of-the-art' becomes 'State-of-the-Art' and 'well-being' becomes 'Well-Being'. In the 'All words' mode every part is capitalized instead.
- Will acronyms like NASA, SQL, or API stay uppercase?
- Yes. Any word that is already ALL-CAPS is treated as an acronym and left exactly as written, and names with an intentional internal capital such as iPhone or eBay are preserved too.
- Can I convert several headlines at once?
- Yes. Put one title per line and each line is capitalized independently, with its own first and last word forced. That makes it quick to run a batch of blog titles, page headings, or list items through at the same time.
- Does the text I paste into the title case converter get sent to a server?
- No. The title case converter runs entirely in your browser using local JavaScript. The headlines you paste are capitalized on your device and are never uploaded to ArrayKit or anyone else.
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