Text Case Converter
Paste any text and switch it instantly between Title Case, Sentence case, UPPER, lower, kebab-case, snake_case and camelCase — with proper handling of the small words that trip up most converters.
Why "just capitalise each word" gets it wrong
Most quick converters apply the naive rule — uppercase the first letter of every word — and produce headlines like "The 7 Best Tools For A Small Business," with "For" and "A" awkwardly capitalised. Real title case follows a convention: major words go up, but articles, short conjunctions and short prepositions stay lowercase unless they open or close the title. The catch is that the two dominant style guides disagree on the cutoff. Associated Press style lowercases prepositions of three letters or fewer; Chicago lowercases them regardless of length. This tool lets you pick, so your headlines match whichever house style you're writing for instead of looking subtly off.
The case you choose sets a tone
Beyond correctness, case is a quiet branding decision. Title Case reads as formal and traditional — newspapers, book covers, classic headlines. Sentence case feels modern, friendly and conversational, which is why so many software products and newer brands use it for buttons, subject lines and headings. ALL CAPS shouts and is best reserved for tiny labels, never body copy. Pick one convention and apply it consistently across your site, ads and emails; the consistency itself signals polish, and inconsistency is the kind of small tell that makes a brand feel slapped together even when every individual word is fine.
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Frequently asked questions
What is title case?
Title case capitalises the first letter of each major word in a heading, while leaving short words like 'a', 'and', 'of' and 'the' lowercase unless they're the first or last word. It's the style used for most headlines, page titles and book titles in English.
What's the difference between title case and sentence case?
Title case capitalises each major word; sentence case capitalises only the first word and any proper nouns, like a normal sentence. Sentence case has become popular for UI text, subject lines and many modern brands because it reads as warmer and less shouty than title case.
When would I use kebab-case or snake_case?
kebab-case (words-joined-by-hyphens) is the standard for URL slugs and CSS classes. snake_case (words_joined_by_underscores) is common in code, file names and analytics event names. Both lowercase everything and replace spaces, so they're handy for turning a human title into a machine-friendly identifier.