Case Converter
UPPER, lower, Title, camelCase and more
How to use Case Converter
- Type or paste your text into the input field.
- All case conversions appear below — updated as you type.
- Click Copy on any row to copy that case version to your clipboard.
When to use each case style
UPPERCASE is used for emphasis, acronyms, and constants in code. lowercase suits modern minimalist branding, informal writing, and many CSS classes. Title Case is the standard for headlines and book titles; Sentence case is standard for body text and paragraphs.
In code, each case has a specific role. camelCase names variables and functions in JavaScript, Java, and Swift. PascalCase names classes and React components. snake_case is common in Python and Ruby. kebab-case appears in URLs, CSS classes, and filenames. CONSTANT_CASE marks immutable values.
The exotic cases have their own uses: dot.case for config keys and namespaces, path/case for folder paths, aLtErNaTiNg for memes and sarcasm, Inverse case for generating visually loud placeholder text.