Case Converter

Case Converter

Convert any text instantly to 14 different case formats. Type or paste your content and watch every format update live — UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Case, aLtErNaTiNg cAsE, InVeRsE CaSe, plus all the developer naming conventions: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and path/case. Smart tokenization handles acronyms (XML, iOS, HTTP) correctly. Perfect for writers fixing accidental caps lock, content creators formatting titles, and developers refactoring variable names across languages.

0 characters 0 words

UPPERCASE

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lowercase

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Title Case

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Sentence case

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Capitalized Case

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aLtErNaTiNg cAsE

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InVeRsE CaSe

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camelCase

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PascalCase

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snake_case

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kebab-case

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CONSTANT_CASE

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dot.case

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path/case

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Results may vary. Always verify.

How to Use the Case Converter

Paste or Type Your Text

Click inside the input box and start typing, or paste any text using Ctrl+V (Windows / Linux) or Cmd+V (Mac). You can paste from Word, Google Docs, code editors, emails, or anywhere else.

View All 14 Formats Instantly

Every case format updates live as you type — no buttons to press, no page reloads. See your text in UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and 8 more formats simultaneously.

Copy the Format You Need

Click the 📋 Copy button on any output card to copy that specific format to your clipboard. Use Clear to wipe the input and start fresh, or Load Sample to see how it works.

Frequently Asked Questions

What case formats does the Case Converter support?

Fourteen formats total. Writing formats: UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Case, aLtErNaTiNg cAsE, and InVeRsE CaSe. Programming naming conventions: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and path/case. All 14 update live as you type — no need to pick one upfront.

How does the converter handle acronyms like XML or iOS?

Smart tokenization recognizes consecutive uppercase letters as acronyms and treats them as single units. For example, XMLHttpRequest becomes xml_http_request in snake_case — not x_m_l_http_request. The same logic applies to API, HTTP, iOS, URL, and similar terms. This matches how developer tools and linters treat acronyms in real code.

What's the difference between Title Case and Capitalized Case?

Title Case capitalizes major words but keeps minor words (a, an, the, and, but, or, on, in, at, of, to, for) lowercase — except for the first and last word. Capitalized Case capitalizes every word with no exceptions. Example: a tale of two cities becomes A Tale of Two Cities in Title Case but A Tale Of Two Cities in Capitalized Case.

Is there a limit on the text I can convert?

No. The Case Converter has no length limit. Paste entire essays, articles, or code files — everything converts instantly. All processing happens in your browser, so size only affects your device, never our server.

Is my text saved or sent anywhere?

No. Every conversion runs entirely in your browser. Your text never leaves your device, is never logged, and disappears the moment you close the tab. We can't see what you convert.