Convert text to Title Case (with correct minor-word handling) or Sentence case. Runs entirely in your browser.
Calculator verified • Last updated: August 2026
Title Case is the capitalization style used for headlines, book titles, and article titles — most words are capitalized, but a handful of short "minor" words (articles, coordinating conjunctions, and short prepositions) stay lowercase when they fall in the middle of the title. Sentence case is the ordinary capitalization used in normal prose: only the first letter of the sentence, and the first letter after any sentence-ending punctuation, gets capitalized. Both styles matter for different jobs — Title Case for headings and titles, Sentence case for body text and captions — and getting either one right by hand across a long piece of text is tedious and easy to get inconsistent.
This tool follows the standard title-case convention shared by most major style guides: articles (a, an, the), coordinating conjunctions (and, but, or, nor, for, so, yet), and short prepositions (of, in, on, at, to, by, up, as) stay lowercase — but only when they appear in the middle of the title. The very first and very last word of the title are always capitalized, regardless of what they are, since a lowercase word sitting right at the start or end of a title reads as a mistake rather than a style choice.
The input "the lord of the rings: the fellowship of the ring" converts to "The Lord of the Rings: The Fellowship of the Ring" in Title Case — notice "the" and "of" stay lowercase in the middle, but the very first "the" and the "the" that opens the second half are both capitalized. In Sentence case, the same input becomes "The lord of the rings: the fellowship of the ring" — only the first letter of the whole string is capitalized, since there's no sentence-ending punctuation anywhere in that phrase to trigger a second capital.
Capitalizing every single word, including minor words like "of" and "the," is the most common Title Case mistake — it produces a title that reads as amateurish to anyone familiar with standard style conventions. The opposite mistake — lowercasing the first or last word because it happens to be a minor word ("of Mice and Men" instead of "Of Mice and Men") — is just as common and just as noticeable. For Sentence case, the usual error is leaving mid-sentence capitals in place from the original text (typed-in emphasis, a proper noun that isn't actually capitalized in true sentence case rules) — this tool lowercases everything first, so any capitalization that should stay (a proper noun, an acronym) needs to be restored by hand afterward.
Minor Word — a short, low-emphasis word (article, coordinating conjunction, or short preposition) that conventionally stays lowercase in the middle of a Title Case heading.
Headline Style — another name for Title Case, most associated with newspaper and magazine headlines.
Down Style — the opposite convention, where only the first word of a heading and any proper nouns are capitalized, closer to Sentence case than Title Case.
Sentence-Ending Punctuation — a period, exclamation mark, or question mark followed by a space, the signal Sentence case uses to know where the next capital letter belongs.
Short function words — articles (a, an, the), coordinating conjunctions (and, but, or, nor, for, so, yet), and short prepositions (of, in, on, at, to, by, up, as) — stay lowercase in title case, unless they're the first or last word of the title, in which case they're always capitalized.
It's a standard title-case convention used by every major style guide (AP, Chicago, MLA). A minor word like "the" or "of" only stays lowercase in the middle of a title — at the very start or end, it's capitalized like any other word, since a lowercase word at either edge reads as a typo rather than a style choice.
Title Case capitalizes most words (skipping minor words in the middle), the style used for headlines and book titles. Sentence case capitalizes only the first letter of the whole passage and the first letter after each sentence-ending punctuation mark, the same way ordinary prose is capitalized.
It capitalizes the first letter it finds in each whitespace-separated word, so a hyphenated word like "well-known" becomes "Well-known" (only the first part capitalized) and "don't" becomes "Don't" — matching how most title-case tools and style guides treat these cases by default.