Title Capitalization Tool
Capitalize your titles correctly following AP, APA, Chicago, or MLA style rules. Paste your title and get proper capitalization instantly — no signup, no guesswork.
Lowercase: articles, coordinating conjunctions, prepositions ≤3 letters. First and last word always capitalized.
Paste a Title, Get Correct Capitalization
The instant capitalizer in the hero section and in the left panel applies style-specific capitalization rules in real time. You type or paste your title, choose a style guide, and click the button to see the correctly capitalized version immediately. No AI call, no waiting — the logic runs in your browser and handles articles, prepositions, conjunctions, and the mandatory first/last word capitalization for each style. For titles with unusual words, proper nouns, or complex hyphenation, the AI tab can apply nuanced judgement beyond what rule-based logic handles.
How to use the tool
Enter your title
Type or paste your title into the text input field. The tool accepts any length of title from a short three-word headline to a long academic paper title.
Select your style guide
Choose from AP Style, APA Style, Chicago Style, MLA Style, or Simple Title Case depending on your publication or assignment requirements.
Click Capitalize Title Now
The correctly capitalized title appears immediately below. A brief note explains which rules were applied for the chosen style.
Copy and use
Click the Copy button to copy the result to your clipboard. Paste it directly into your document, headline field, or CMS editor.
Style Guide Differences
The most practical difference between the four styles comes down to prepositions. AP Style lowercases only short prepositions (three letters or fewer), so "With," "From," "Into," and "Over" are capitalized. APA Style capitalizes all words of four or more letters, which reaches the same result for most prepositions. Chicago Style lowercases all prepositions without exception — "with," "from," "into," "over," "between," and "throughout" are all lowercase in a Chicago-style title. MLA follows a similar approach to Chicago. If you generate titles for blog posts or need SEO-optimized headlines, the AI title generator can create properly formatted options from scratch.
Which Words to Capitalize and Which to Skip
Every capitalization style shares the same foundation: capitalize nouns, verbs, adjectives, and adverbs. The variation lies in the "short word" exceptions — the articles, prepositions, and conjunctions that different styles treat differently. Understanding the categories helps you recognize why the tool produces the output it does and make manual corrections when a title has unusual phrasing that does not fit standard patterns.
Blog Post and Article Titles
Most online publications follow AP Style or a simplified version of it. For blog posts and articles, the most common practice is to capitalize all major words and lowercase the, a, an, and short prepositions and conjunctions. This keeps headlines visually clean and consistent. When writing titles for SEO, capitalization also affects how search snippets display in results — properly capitalized titles look more authoritative and tend to attract higher click-through rates. After you capitalize your title, you can use the blog title generator to brainstorm additional SEO-optimized variations.
Academic Paper Titles
APA and Chicago are the dominant styles in academic writing. APA 7th edition is the standard in psychology, education, and social sciences. Chicago style is common in history, literature, and the humanities. The title of an academic paper in an APA document typically uses title case (capitalize major words) in the body of the paper but sentence case (only first word and proper nouns) in the reference list. This tool applies title case rules, which is the format used for paper headings and in-text references. For full APA citation formatting, use the APA title page generator to format your paper's cover page correctly.
Email Subject Lines
Email subject lines occupy an interesting space: they are informal enough that sentence case (capitalize only the first word) is acceptable, but professional enough that many marketers prefer title case for its visual authority. Most email marketing platforms and business communications use either AP-style title case or Simple Title Case. For sales outreach, formal business communications, and newsletter subject lines, AP Style title case creates a polished impression. For transactional emails, sentence case often works better as it feels less like advertising. The email writer generator can help craft the full message once you have your subject line capitalized correctly.
Handling Hyphens, Prepositions, and Short Words
Beyond the standard word categories, title capitalization has several edge cases that catch writers off guard. Hyphenated compound words, prepositions of varying lengths, "to" as part of an infinitive versus a preposition, and short verbs that look like prepositions (such as "is," "are," "be") all require specific treatment. Understanding these cases helps you evaluate whether an automatic tool's output matches your style guide requirements or needs manual adjustment.
AP Style Title Capitalization
AP Style is the most commonly used capitalization standard in journalism and digital content. Its rules for title case are: capitalize the first and last word of the title, capitalize all "major" words including nouns, verbs, adjectives, and adverbs, and lowercase articles (a, an, the), coordinating conjunctions (and, but, or, for, nor, so, yet), and prepositions of three letters or fewer (at, by, in, of, on, to, up, via). Prepositions of four or more letters — such as "With," "From," "Into," "Over," "Between," "Through," and "Around" — are capitalized in AP Style. The word "to" in infinitives (To Go, To Run) is typically treated as a preposition and lowercased unless it is the first word.
APA vs Chicago Style
APA and Chicago produce different results for the same title because of how they handle prepositions. APA 7th edition capitalizes all words of four or more letters, which means "With," "From," "Into," "Over," "Before," "After," and other longer prepositions are capitalized. Chicago lowercases all prepositions without exception — "with," "from," "into," "over," "before," "after" are all lowercase regardless of length. In practice, a title like "A Guide to Writing With Purpose" would become "A Guide to Writing With Purpose" in APA (With = 4 letters, capitalized) and "A Guide to Writing with Purpose" in Chicago (with = lowercase preposition). Running the same title through both styles with this tool shows the difference clearly.
Common Capitalization Mistakes
The most frequent capitalization error is applying the wrong style for the context — using Chicago rules in an AP-style publication or defaulting to Simple Title Case when the submission requires APA. Another common mistake is forgetting that the last word of a title is always capitalized, even if it is "the," "a," or "in." Writers also frequently lowercase short verbs such as "Is," "Are," "Was," and "Be" because they look like small words — but verbs are always major words and must be capitalized in all styles. Similarly, "Not" is an adverb and should always be capitalized. If you want a quick grammar and spelling check on the content of your title before finalizing it, the grammar checker can review the full text.
FAQ
Common questions about title capitalization rules across AP, APA, Chicago, and MLA style guides.
What words are lowercase in titles?
The words that are lowercased in titles depend on the style guide. Across all four major styles, the following are typically lowercase when they appear in the middle of a title: articles (a, an, the) and coordinating conjunctions (and, but, or, nor, for, so, yet). Prepositions vary by style: AP lowercases only short prepositions (3 or fewer letters), APA lowercases short prepositions and short conjunctions, while Chicago and MLA lowercase all prepositions regardless of length. The first and last word of any title is always capitalized in every style.
What is the difference between AP and APA?
AP Style (Associated Press) is a journalistic style guide used by newspapers, magazines, and online media. APA Style (American Psychological Association) is an academic style guide used in psychology, education, and social sciences. For title capitalization, AP capitalizes prepositions of four or more letters while lowercasing shorter ones. APA capitalizes all words of four or more letters and lowercases all words of three or fewer letters that are not major parts of speech. In most practical cases the results are nearly identical, but APA is slightly more systematic because it uses word length as the deciding factor.
Should I capitalize 'the' in a title?
"The" is lowercased in the middle of a title in every major style guide. However, if "the" is the first word of a title, it must be capitalized — "The Great Gatsby," for example. If "the" is the last word, it is also capitalized. In formal citation practice, "the" at the beginning of a newspaper or journal name (such as The New York Times) is sometimes capitalized in the running text but treated differently in reference lists. For all standard title capitalization purposes, capitalize "the" only when it is the first or last word.
Are prepositions capitalized?
It depends on the style guide and the length of the preposition. In AP Style, prepositions of four or more letters (With, From, Into, Over, Between, Through) are capitalized. In APA Style, words of four or more letters are capitalized, which includes longer prepositions. In Chicago Style, all prepositions are lowercased regardless of length — even "Between," "Through," and "Throughout." In MLA Style, all prepositions are lowercased similar to Chicago. In Simple Title Case, all words including prepositions are capitalized.
What about hyphenated words?
Hyphenated words in titles require special treatment. In AP Style, capitalize the first element of a hyphenated compound and any subsequent element that is a noun, adjective, or adverb — so "Self-Aware," "Well-Known," and "Up-to-Date." In Chicago Style, capitalize both elements of a hyphenated word if both are major words. APA capitalizes all elements that are four or more letters. When using the AI tab on this tool, it can analyze hyphenated compounds contextually and apply the correct capitalization for each part based on its grammatical function.
Is the first word always capitalized?
Yes. Every style guide — AP, APA, Chicago, MLA, and all others — agrees that the first word of a title is always capitalized regardless of its part of speech. If "a," "the," "and," "in," or any other typically lowercased word is the first word, it is capitalized. The same rule applies to the last word of the title. For subtitles (the portion after a colon), the first word of the subtitle is also always capitalized, even if it would normally be lowercase in the middle of a title.
What is title case?
Title case is a capitalization convention in which major words in a title or heading are capitalized and minor words (articles, short prepositions, coordinating conjunctions) are left lowercase. It contrasts with sentence case (capitalize only the first word and proper nouns) and all caps (every letter uppercase). Title case is the standard for book titles, article headlines, film titles, academic paper headings, and most formal headings in English. The specific rules for which words count as "minor" vary by style guide.
What is title case generator?
A title case generator is a tool that automatically converts text into title case by applying capitalization rules to each word based on a chosen style guide. You input a title in any capitalization state — all lowercase, all caps, sentence case, or mixed — and the generator outputs the correctly capitalized version. The generator handles which words are major (and should be capitalized) and which are minor (and should stay lowercase) so you do not have to apply the rules manually. This page is a free title case generator that supports AP, APA, Chicago, MLA, and Simple Title Case.
What is title capitalizer?
A title capitalizer is another term for a title case generator — a tool that applies the appropriate capitalization to each word in a title based on grammar rules and style guide requirements. Writers use title capitalizers to ensure consistency across all their headlines and to avoid the common mistake of incorrectly lowercasing major words or capitalizing minor ones. Title capitalizers are particularly useful for content writers managing large volumes of blog posts, for students submitting academic papers, and for marketers formatting ad copy and email subject lines.
What is title casing?
Title casing refers to the act or process of applying title case rules to text — capitalizing the appropriate words and lowercasing the rest. The term is used interchangeably with "title capitalization" and describes the convention used for headings, titles, and headers in English writing. Title casing is distinct from other casing conventions such as sentence casing (only first word capitalized), camel casing (used in programming), and all caps. When someone asks you to "title case" a heading, they are asking you to apply the major-word-capitalization rules appropriate for the style guide you are following.