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Title Case Converter

Title case converter online. Automatically capitalize blog headlines, academic papers, and book titles according to AP, Chicago, APA, and MLA editorial standards.

Active Mode: Title Case
Chars: 0Words: 0Lines: 0
Primary Action: Convert to Title Case
AP / Chicago / APA-style title capitalisation. (Example: Hello World)

Convert Text To:

12 Case Styles Available
Writing & Editorial Cases
Code & Developer Identifier Cases

Master Headline Capitalization with Our Title Case Converter Tool

Formatting headlines correctly is one of the quickest ways to establish authority, professionalism, and editorial credibility. Yet remembering which prepositions, conjunctions, and articles require capitalization across different style manuals can be daunting. Our free title case converter online automates the entire process. Whether you need an ap title case converter for journalism, a sentence case to title case converter for blog posts, or an uppercase to title case converter to fix all-caps copy, this tool ensures your titles are grammatically flawless.

The Core Rules of Title Case Capitalization

Title case (often referred to as Headline Style) is designed to give visual hierarchy to titles. While different editorial associations maintain slight variations, standard title capitalization follows four core universal principles:

  • Always Capitalize the First & Last Word: Regardless of part of speech (e.g., "The Man Who Walked In").
  • Capitalize Major Parts of Speech: All nouns, pronouns, verbs (including "is", "am", "are", "be"), adjectives, and adverbs must be capitalized.
  • Lowercase Articles: "a", "an", and "the" remain lowercase unless appearing at the start of a title or subtitle.
  • Lowercase Coordinating Conjunctions: "and", "but", "for", "or", and "nor" stay lowercase.
  • Handle Prepositions Accurately: Short prepositions ("in", "on", "at", "to", "by", "of") remain lowercase in standard title case.

Style Guide Nuances: AP vs. Chicago vs. APA vs. MLA

Depending on your industry, your publication may adhere to a specific style manual:

  • Associated Press (AP): The standard for journalism and digital newsrooms. AP dictates that prepositions of three or fewer letters remain lowercase, while prepositions of four or more letters (e.g., "Through", "Across", "With", "From") must be capitalized.
  • Chicago Manual of Style (CMOS): The gold standard for book publishing and academic presses. Chicago keeps all prepositions lowercase, regardless of character length (e.g., "through", "between", "against").
  • APA (American Psychological Association): Used extensively in scientific research papers. Similar to AP, it capitalizes prepositions with four or more letters.

Headline Style Guide Comparison

Style GuideShort Prepositions (in, on, to)Long Prepositions (with, from, through)Hyphenated Compounds
Associated Press (AP)LowercaseCapitalize (4+ letters)Capitalize both parts (e.g. State-of-the-Art).
Chicago (CMOS)LowercaseLowercase (all lengths)Capitalize first element; second if major word.
APA StyleLowercaseCapitalize (4+ letters)Capitalize both elements in compound words.
Modern Web / BlogLowercaseCapitalized for visual balanceCapitalize major components for readability.

Frequently Asked Questions

What is title case and what words should be capitalized?

Title case (also called headline style) capitalizes the first letter of major words—such as nouns, pronouns, verbs, adjectives, and adverbs. Minor grammatical words—such as articles (a, an, the), coordinating conjunctions (and, but, for, or, nor), and short prepositions (in, on, at, to, by, with)—remain lowercase unless they are the first or last word of the title or subtitle.

What is the difference between AP title case converter rules and Chicago or APA style?

Under Associated Press (AP) style, prepositions of three or fewer letters (in, on, at, by) are lowercase, but prepositions of four or more letters (like "With", "From", "Into", "About") are capitalized. The Chicago Manual of Style (CMOS) keeps all prepositions lowercase regardless of length, while APA style capitalizes prepositions with four or more letters. Our title case converter tool handles these nuances accurately.

How do I convert sentence case to title case converter format?

Simply paste your sentence case headline or paragraph into the workspace above and click "Title Case". Our algorithm scans the text, identifies sentence boundaries, detects connecting words, and capitalizes all principal terms instantly.

Is the first and last word always capitalized in title case?

Yes! In every major editorial style guide (AP, Chicago, APA, MLA, NYT), the first word of a title, the first word after a colon or em dash (subtitles), and the final word of the title are always capitalized, even if they are prepositions or articles.

Can this tool handle caps to title case or uppercase to title case conversion?

Yes, our caps to title case converter effortlessly handles screaming ALL CAPS text. It resets all non-initial letters to lowercase and intelligently applies proper title capitalization rules across the entire phrase.