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Case Converter

Switch any block of text between five common letter cases, then copy the result.

Your text

How to use the case converter

Paste your text into the box.
Click a case button to transform it in place.
Copy the result, or keep clicking other case buttons to try different styles.

Features

Five case styles: UPPERCASE, lowercase, Title Case, Sentence case, Capitalize Each Word
One-click copy to clipboard
Clear button to start over

Choose the right text case

UPPERCASE is useful for short labels and headings, lowercase is common for normalized text, Title Case suits headings, and Sentence case is easier to read in ordinary prose. Programming styles such as camelCase or snake_case are better handled with developer-specific naming rules.

After converting names, brands or acronyms, quickly review the result. Automated casing cannot always know that words such as iPhone, eBay, API or a person’s preferred spelling should keep unusual capitalisation.

When changing a long document, keep a copy of the original text so you can restore intentional capitalisation. This matters for names, product brands, abbreviations and code-like identifiers that an automatic case rule cannot infer.

Frequently asked questions

In this tool both capitalize the first letter of every word; true Title Case style guides sometimes keep small words like “of” or “the” lowercase, which you can adjust manually after converting.

No, only letter casing is changed — punctuation and spacing are left exactly as you typed them.

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Case conversion still needs a human check

Automatic case rules are useful for cleaning text quickly, but proper nouns, product names, acronyms and headings often need exceptions. After converting a long block, scan names and abbreviations before publishing.

Use sentence case for most body copy.
Keep acronyms such as PDF or API in their intended capitals.
For titles, follow the style guide of the publication or organisation.