Case Converter - UPPERCASE, lowercase, Title Case

UPPERCASE
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lowercase
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Title Case
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Sentence case
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Convert text case instantly with our Case Converter. Paste or type your text and see it in all four formats at once: UPPERCASE, lowercase, Title Case, and Sentence case — updating live as you type.

Each format has its place: UPPERCASE for emphasis and headings, lowercase for code and URLs, Title Case for headlines and titles, and Sentence case for body text. Click the copy button next to any version to grab it immediately.

The tool handles accents and non-English characters correctly using Unicode-aware case conversion. Everything runs in your browser — your text never leaves your device. Fix a shouted ALL-CAPS email, format a title, or normalize a list without retyping a single word.

Formule
toUpperCase() | toLowerCase() | Title Case: capitalize first letter of each word | Sentence case: capitalize after . ! ?

FAQ

What case formats are supported?
Four formats: UPPERCASE, lowercase, Title Case (each word capitalized), and Sentence case (first letter after each sentence capitalized). All convert live as you type.
What is Title Case used for?
Headlines, book titles, and headings. Style guides differ on whether small words (a, of, the) stay lowercase — this tool capitalizes every word for consistency.
What is Sentence case used for?
Body text and everyday writing: only the first letter of each sentence is capitalized. It is the standard for most modern publications and UI text.
Is my text uploaded anywhere?
No. All conversion happens locally in your browser. Nothing is sent to any server, so it is safe for private or confidential text.

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