About the Case Converter
Case Converter reformats text into eleven common casing conventions used across writing, programming and data entry. Whether you need a variable name in camelCase, a constant in CONSTANT_CASE, or a properly capitalised headline, this tool converts your input instantly and lets you copy the result with one click.
How to use it
- 01Type or paste your text into the input panel.
- 02Click one of the case buttons to apply that style.
- 03Review the converted text in the output panel.
- 04Copy the result to your clipboard for use elsewhere.
Features
- Eleven case styles: lower, upper, title, sentence, camel, pascal, snake, kebab, constant, alternating and invert
- Word-boundary detection that handles spaces, hyphens, underscores and camelCase input
- Instant conversion with a single click per style
- One-click copy of the converted output
Practical examples
Naming a variable
Convert a phrase like 'user first name' into camelCase or snake_case for use in code.
Formatting a headline
Convert a rough draft into Title Case for a heading or article title.
Limitations
- Word-boundary splitting for camel/snake/kebab conversions is based on spacing, punctuation and letter-case transitions, so unusual mixed formatting may split words unexpectedly.
- Sentence case capitalises the first letter after sentence-ending punctuation and may not perfectly handle abbreviations like 'e.g.'.
Privacy
Conversion happens entirely in your browser; text you enter is never sent to a server.
Read the full privacy policy for how the site as a whole handles data.
Frequently asked questions
What is alternating case used for?
It's often used for mocking or stylised text, alternating lower and upper case letter by letter.
Does invert case reverse the text order?
No, invert only flips the case of each letter; the character order stays the same.
Can I convert code identifiers?
Yes, camelCase and snake_case identifiers are recognised as word boundaries when converting to another style.