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Case Converter

Change text to UPPERCASE, lowercase, Title Case or Sentence case, or to camelCase, snake_case and kebab-case for code.

Convert to

Runs in your browser — nothing you enter is sent to a server.

How the Case Converter works

Paste your text and choose a case. The result updates as you type, and you can switch between cases without retyping anything. Text is converted in your browser and never uploaded.

The programming cases (camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE) split text into words at spaces, punctuation and changes of case, so userAccountID, user_account_id and User Account ID all convert cleanly. Each line is converted separately, so you can paste a whole list of names.

Examples

Title Case

the QUICK brown fox → The Quick Brown Fox

Sentence case

WHERE IS IT? HERE. → Where is it? Here.

From a label to a variable name

Order total (USD) → camelCase orderTotalUsd, snake_case order_total_usd

Acronyms in code names

XMLHttpRequest → kebab-case xml-http-request

Frequently asked questions

Why did Title Case lowercase my acronyms?

Title Case capitalizes the first letter of every word and lowercases the rest, so “NASA” becomes “Nasa”. Fix acronyms by hand afterwards. It also capitalizes short words like “of” and “the”, which some style guides keep lowercase.

Does Sentence case know about names?

No. It capitalizes only the first letter of each sentence and line, so names, places and the word “I” become lowercase and need fixing by hand.

What's the difference between camelCase and PascalCase?

camelCase starts with a lowercase letter (firstName), PascalCase with a capital (FirstName). JavaScript uses camelCase for variables and PascalCase for classes and components.

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