Case Converter
Transform text between uppercase, lowercase, title case, camelCase, snake_case, and kebab-case with a single click. All processing is local.
How to Use the Case Converter
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Frequently Asked Questions
Which case for which job?
UPPER for constants and headings; Title Case for document titles; camelCase for JavaScript variables; snake_case for Python/files; kebab-case for URLs and CSS classes. Pick by ecosystem convention, not taste.
How does Title Case handle small words?
Articles and short prepositions (a, the, of, in) stay lowercase mid-title per Chicago/AP style — the converter follows standard title-casing rules, not naive capitalize-every-word.
camelCase vs PascalCase?
camelCase starts lowercase (myVariable) for variables/functions; PascalCase starts uppercase (MyClass) for classes/components. The converter offers both — check your language's convention.
Does it handle large documents?
Yes — pastes of full articles convert instantly since it's pure string ops. Sentence case on long text: verify abbreviations (e.g., 'e.g.') didn't trigger false sentence breaks.
When using Case Converter, is my text uploaded?
No. Conversion runs entirely in your browser. Text never leaves your device.
What exactly comes back for one input?
Seven rows at once: UPPER, lower, Title, camelCase, snake_case, kebab-case, and UPPER_SNAKE. Title capitalizes every word (‘of mice and men’ becomes ‘Of Mice And Men’ — small words aren’t excepted), and words split on letters/digits, so ‘hello-world_test’ becomes helloWorldTest. Press Convert — it isn’t automatic.
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Last updated October 2026