Case Converter

UPPERCASE is used for acronyms and emphasis. lowercase is the default for body text. Title Case capitalizes the first letter of each word and is used for headings. Sentence case capitalizes only the first letter of a sentence. camelCase and PascalCase are used in programming for variable and class names. snake_case is common in Python and database columns. kebab-case is used in URLs and CSS. CONSTANT_CASE is used for constants in code.

In JavaScript and TypeScript, camelCase is used for variables and functions, PascalCase for classes and components. Python uses snake_case for variables and functions. CSS uses kebab-case for class names and properties. Constants are typically written in CONSTANT_CASE across most languages.

Title Case capitalizes the first letter of every word. In formal title case (like AP or Chicago style), small words such as "a", "an", "the", "and", "or" are not capitalized unless they start the title. This tool capitalizes every word for simplicity.

Yes, most programming languages are case-sensitive. "myVariable" and "myvariable" are treated as different identifiers. Using the correct case convention for your language helps with readability and avoids bugs.

This tool handles standard ASCII letters for programming cases (camelCase, snake_case, etc.). For UPPERCASE, lowercase, Title Case, and Sentence case, it uses your browser's native locale-aware string methods, so accented characters like e with accent or u with umlaut are handled correctly.