Title Case Converter Online
Title Case capitalizes the major words in a heading while keeping articles, short prepositions, and conjunctions lowercase. Paste your text above and it converts instantly, following the capitalization rules used across AP, APA, and Chicago style guides. Nothing is uploaded.
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How Title Case Converter works
Paste your text into the input panel and it converts to Title Case automatically. Turn off auto-run and hit convert manually if you prefer to control when the conversion runs. The output is ready to copy from the right panel immediately.
What Title Case is
Title Case capitalizes the first letter of major words in a heading while keeping certain minor words lowercase. It is the standard format for headlines, book titles, blog post titles, email subject lines, and article headings across most English-language publishing.
The words that stay lowercase are articles (a, an, the), coordinating conjunctions (and, but, or, nor, so, yet, for), and short prepositions (in, on, at, to, by, of, for, up). Two rules override everything else: the first word and the last word of a title are always capitalized regardless of what type of word they are. So “A” is lowercase in the middle of a title but uppercase at the start.
A heading like “tips for writing on the go” becomes “Tips for Writing on the Go.” The prepositions “for” and “on” and the article “the” stay lowercase. The verb “Writing” and noun “Tips” are capitalized. “Go” is capitalized because it is the last word.
How style guides differ
The core rules of Title Case are consistent across style guides, but the edges differ in ways that matter for academic and professional writing.
AP Style (Associated Press) is used by most news publications and journalism. It keeps prepositions of three letters or fewer lowercase but capitalizes prepositions of four or more letters. So “with” stays lowercase but “From” and “Between” are capitalized. This is the most commonly used standard for blog posts and online content.
APA Style (American Psychological Association) is used in academic papers across psychology, education, and social sciences. APA capitalizes all prepositions regardless of length. “With”, “From”, “Between”, and “Through” are all capitalized in APA. It also capitalizes both parts of a hyphenated word.
Chicago Manual of Style is used in book publishing and academic humanities. Chicago lowercases prepositions of any length when they are functioning as prepositions, but capitalizes them when they function as adjectives or adverbs. This produces subtly different results from AP and APA on some headings.
MLA Style (Modern Language Association) is used in humanities academic papers. Its rules closely follow Chicago for most cases. For everyday blog posts and non-academic content, the difference between these guides is minor enough that the output will look identical for most headings. The differences only become visible in headings that contain longer prepositions like “between”, “through”, or “against”.
Where Title Case is used
Blog post headlines and article titles are the most common use. Most online publications use Title Case for their main headings and sentence case for subheadings. Converting a list of draft blog titles before they go into a CMS saves time compared to checking each one manually.
Email subject lines in marketing campaigns benefit from consistent Title Case formatting. It looks more deliberate than all-lowercase and less aggressive than ALL CAPS. Converting a batch of subject line variants here before uploading to an email platform keeps formatting consistent across the whole campaign.
Academic papers require specific Title Case formatting on the title page and for chapter headings. APA and MLA both specify Title Case for headings above a certain level. If you are writing across multiple style guides, checking which rules apply before formatting saves corrections later. The difference between Title Case and Sentence case for academic subheadings is explained in the sentence case converter.
UI and product copy sometimes requires Title Case for navigation items, modal titles, and button labels depending on the design system in use. If you have a list of interface labels to standardize, converting them here is faster than editing individually. For all ten case formats from a single input, the case converters covers every format at once.