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Title Capitalizer: APA, Chicago & MLA Case

Convert headings, book titles, blog headlines, and essay names into standardized title case directly in your browser. Select from leading editorial style guides including AP Style, Chicago Manual of Style, APA, MLA, and New York Times style. The engine handles lowercasing minor words (articles, coordinating conjunctions, short prepositions) while maintaining required capitalization on the first and last words of titles.

How to use

  1. Step 1: Input Your Headline

    Type or paste your raw title, heading, or article name into the input field.

  2. Step 2: Select Editorial Style

    Choose Chicago (16th/17th ed), AP Style, APA 7th, MLA 8th, or Sentence case.

  3. Step 3: Copy Capitalized Title

    Review the formatted title and copy the capitalized result directly to your clipboard.

Options explained

Chicago Style

Lowercases all prepositions regardless of length (e.g., through, between) along with articles and conjunctions.

When to use: Standard for book publishing, academic papers in humanities, and general non-fiction.

AP Style

Capitalizes prepositions of four or more letters (e.g., With, From, Over), lowercasing only shorter words.

When to use: Standard for journalism, press releases, corporate newsrooms, and public relations.

APA & MLA Styles

Applies academic heading capitalization rules standard for scientific and literary research papers.

When to use: Use for college theses, academic journal submissions, and scholarly essays.

Worked example

Input: 'the man who swam across the river for gold'

Output: Chicago Style: 'The Man Who Swam across the River for Gold' | AP Style: 'The Man Who Swam Across the River for Gold'

Capitalized based on editorial grammatical word lists and position rules.

Tips & limits

  • All major styles mandate capitalizing both the first and last words of a title, regardless of word class.
  • Hyphenated compound words are capitalized according to the selected style guide rules.
  • Prepositions like 'in', 'on', 'at', and 'to' remain lowercase in the middle of headlines across all styles.

Common problems

The first word remains lowercase

Verify that the title does not start with leading punctuation or quotes that mislead the tokenizer.

Short prepositions at the end of a title are lowercase

Title case rules require the last word to always be capitalized; our engine enforces this rule automatically.

Frequently Asked Questions (FAQ)

What is the key difference between Chicago and AP title case?

AP style capitalizes prepositions with 4 or more letters (like 'With', 'From', 'Into'), whereas Chicago keeps all prepositions lowercase unless they are the first or last word.

Does the tool handle hyphenated words?

Yes. Both elements of hyphenated compounds are capitalized according to grammatical rules (e.g., 'Self-Driving').

Is my headline or title text sent to an external server?

No. All lexical analysis and string transformation execute locally in browser memory.

Files never leave your device; calculations and transformations happen locally.

Last reviewed: 2026-10-19 · Build: deb3bc0