Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.
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What does a case converter do?
Case conversion rewrites the capitalisation of text without touching its content: UPPERCASE, lowercase, Title Case, Sentence case, plus developer formats like camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. The converter reads word boundaries from spaces, punctuation and existing camelCase humps, so “userLoginCount” becomes “user_login_count” in one click. Handy for fixing Caps Lock accidents and renaming variables in bulk.
How to use the Case Converter
- 1 Add the text you want to reformat.
- 2 Hit one of the nine style buttons, from UPPERCASE through CONSTANT_CASE.
- 3 Check the output panel shows your chosen style.
- 4 Use Copy to send the result to your clipboard.
What you can use it for
- Reformatting headings and titles for blog posts.
- Converting variable names between programming naming conventions.
- Fixing text that was typed with Caps Lock on.
- Preparing consistent casing for spreadsheets or databases.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalises every word (“The Quick Brown Fox”), while Sentence case capitalises only the first word after each full stop, question mark or exclamation mark.
Can it convert to camelCase or snake_case?
Yes. Word boundaries are detected from spaces, punctuation and lowercase-to-uppercase transitions, then rebuilt in your chosen convention, so “myVariableName” round-trips cleanly to snake_case and back.
Will it break acronyms like NASA in Title Case?
Title Case capitalises the first letter of each word and lowercases the rest, so “NASA report” becomes “Nasa Report”. Restore acronyms by hand afterwards if you need them preserved.
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