Case Converter
Convert text between uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, and kebab-case.
Enter text, choose a case style, and click Convert Case.
About This Tool
This free online case converter instantly transforms text between common letter cases and naming styles. Whether you're a developer standardizing variable names or a writer adjusting formatting, all conversions happen right in your browser — no data is ever sent to a server.
Letter Cases: UPPERCASE makes every letter capital. lowercase makes every letter small. Sentence case capitalizes the first letter of each sentence. Title Case capitalizes the first letter of every word.
Naming Styles (for developers): camelCase is the standard for JavaScript and Java variable names. PascalCase is used for C# and TypeScript class names. snake_case is common in Python and Ruby. kebab-case is used in CSS class names and URLs.
Each conversion handles whitespace normalization and special characters appropriately, giving you clean, predictable output every time. The character count comparison helps you see how the conversion affects text length.