Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case instantly. Free online case converter tool.
What is a case converter?
A case converter changes the capitalisation style of text: UPPERCASE, lowercase, Title Case, Sentence case, and the programmer conventions camelCase, snake_case and kebab-case.
Each programming ecosystem has its own convention — camelCase for JavaScript variables, snake_case for Python and SQL, kebab-case for URLs and CSS classes. Converting by hand invites typos; a converter does it instantly and consistently.
How to use
- 01Type or paste your text into the box.
- 02Click any case button — UPPERCASE, camelCase, snake_case and more.
- 03The text converts in place; click Copy to grab the result.
Frequently asked questions
- What is camelCase used for?
- camelCase is the standard naming convention for variables and functions in JavaScript, Java and many other programming languages — the first word is lowercase and each following word starts with a capital letter.
- What is the difference between snake_case and kebab-case?
- snake_case joins words with underscores and is common in Python and databases. kebab-case joins words with hyphens and is common in URLs and CSS class names.
- Can I convert text back after changing the case?
- Some conversions lose information (for example, original capitalisation), so keep a copy of your source text if you need to preserve it.