Title Case Converter
Capitalize headlines the way style guides actually do.
Title case is the capitalization style used for headlines, book titles, and section headings in English. The rule is not simply "capitalize every word" — that produces awkward results like "The Lord Of The Rings". Real title case capitalizes the significant words and leaves short function words in lowercase, unless they open or close the title.
This converter applies that distinction automatically. Articles, coordinating conjunctions, and short prepositions — a, an, the, and, but, or, for, nor, of, on, at, to, from, by, in — stay lowercase in the middle of a title and get capitalized at the edges. Everything else is capitalized normally.
Two details that trip up most converters are handled here. Acronyms that arrive already in capitals are preserved exactly, so NASA stays NASA rather than becoming Nasa. And hyphenated compounds are treated as separate units, so "state-of-the-art" becomes "State-of-the-Art" rather than "State-Of-The-Art".
Examples
| What it handles | Input | Output |
|---|---|---|
| Minor words stay lowercase | the lord of the rings | The Lord of the Rings |
| Acronyms are preserved | the NASA and ESA report | The NASA and ESA Report |
| Hyphenated compounds | state-of-the-art design | State-of-the-Art Design |
| Accents are kept intact | time in são paulo | Time in São Paulo |
How it works
The text is split on whitespace while preserving the original spacing, so line breaks and indentation survive the conversion. Each word is checked against a list of minor words; those in the middle of the title are lowercased and the rest are capitalized. Words already in all caps with more than one letter are treated as acronyms and left untouched. Hyphenated words are split at the hyphen and each part is evaluated separately, and only the first part of the first word and the last part of the last word count as edges — so a compound keeps the same shape wherever it lands in the line. Each line is treated as its own title, which is what you want when you paste a column of headings: every line gets the first-word and last-word rule, not just the first. Because the tool cannot know that a lowercase "api" was meant as an acronym, it capitalizes it as "Api" — type it as "API" and it will be preserved.
When people use it
- Formatting blog post and article headlines before publishing.
- Normalizing inconsistent headings pasted from several documents.
- Preparing book, chapter, and course titles for a catalogue.
- Cleaning up email subject lines and slide titles.
Frequently asked questions
- Which words are kept lowercase?
- Articles (a, an, the), coordinating conjunctions (and, but, or, nor, for), and short prepositions (of, on, at, to, from, by, in, as, per, via, vs). They are capitalized when they are the first or last word of the title.
- Does it follow AP, Chicago, or MLA style?
- It follows the common ground between them: capitalize significant words, lowercase short function words in the middle. The style guides differ mainly on prepositions of four or more letters, so review long prepositions if you must match one guide exactly.
- Why did my acronym come out as "Api"?
- The tool preserves acronyms that are already uppercase but does not guess them from lowercase input. Guessing would break ordinary words — "it" would become "IT". Type acronyms in capitals and they will survive.
- Is my text uploaded anywhere?
- No. The conversion runs entirely in your browser. Nothing is sent to a server, stored, or logged.