Case Converter

Transform your text into nine different letter cases — from UPPERCASE to camelCase — with one click.

Your text

Result

🔒 Nothing you enter is sent anywhere or stored. All processing happens in your browser.

How it works

The case converter rewrites your text into a chosen capitalization style without changing the underlying words. It handles nine styles that cover everyday writing and programming conventions.

UPPERCASE and lowercase are straightforward transforms. Title Case capitalizes the first letter of every word, while Sentence case capitalizes only the first letter of each sentence. The four programmer styles — camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE — first split your text into words (recognising existing spaces, underscores, hyphens, and the boundary between a lowercase and uppercase letter) and then rejoin them in the target format.

This word-splitting step means you can convert from any style to any other: paste user_first_name and get userFirstName or User First Name back. Copy the result with a single button, or keep typing to convert live.

Examples

"hello world" → Title Case → Hello World

"user first name" → camelCase → userFirstName

"MAX_RETRY_COUNT" → kebab-case → max-retry-count

Frequently asked questions

What's the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word (Good For Headings). Sentence case capitalizes only the first letter of each sentence, like normal prose.

Can I convert between programming cases?

Yes. The tool detects word boundaries from spaces, underscores, hyphens, and camelCase humps, so you can turn snake_case into camelCase, kebab-case into PascalCase, and so on.

Does Title Case follow style-guide rules for small words?

No. It capitalizes every word for predictability. Style guides like AP or Chicago leave short words such as 'and' or 'of' lowercase, so review headlines manually if you follow a specific guide.

Is my text sent to a server?

Never. The conversion runs entirely in your browser, so you can safely convert private or unpublished text.