Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase and more.
How it works
Different contexts expect different text casing conventions, and manually retyping text to match is tedious and error-prone. This converter handles the seven most common cases in one place: UPPERCASE and lowercase for basic formatting, Title Case and Sentence case for headlines and prose, and camelCase, snake_case and kebab-case for programming identifiers, variable names, and URL slugs.
The converter is word-boundary aware -- it detects word breaks from spaces, hyphens, underscores, and camelCase transitions, so converting camelCase to snake_case (or vice versa) works correctly rather than just blindly changing letter case.
Paste your text, pick a target case, and get the converted result instantly, ready to copy.
Frequently asked questions
Does it work with multiple sentences?
Yes, though camelCase/snake_case/kebab-case are typically intended for single identifiers rather than full sentences -- converting a whole paragraph to camelCase, for example, produces a valid but unusual result.
What's the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word ("Hello World Today"). Sentence case capitalizes only the first letter of the whole text ("Hello world today").
Can I convert camelCase back to snake_case?
Yes -- the converter detects word boundaries within camelCase (where a lowercase letter is followed by an uppercase one) as well as spaces, hyphens and underscores, so it converts correctly between any of the seven supported cases.
Why would I need kebab-case?
kebab-case (words-separated-by-hyphens) is the standard convention for URL slugs and many CSS class names / HTML attributes.