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Convert text between cases instantly with this free online tool. Switch between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case — perfect for writers, developers, and data cleanup. Runs entirely in your browser.
On this page
How to Use This Case Converter#
- Type or paste your text in the top box
- Click any case button to convert instantly
- Click Copy to grab the converted text
Text Case Formats Explained#
- UPPERCASE — ALL LETTERS CAPITALIZED, for headings or emphasis
- lowercase — all letters small, for casual text or URLs
- Title Case — First Letter Of Each Word Capitalized, for titles and headlines
- Sentence case — First letter of each sentence capitalized, for body text
- camelCase — firstWordLowerRestCapitalized, common in JavaScript variables
- PascalCase — EveryWordCapitalized, used for class names
- snake_case — words_joined_by_underscores, common in Python
- kebab-case — words-joined-by-hyphens, used in URLs and CSS
Naming Conventions in Programming#
- JavaScript / Java — camelCase for variables, PascalCase for classes
- Python — snake_case for variables and functions, PascalCase for classes
- CSS / HTML — kebab-case for class names and attributes
- Constants — UPPER_SNAKE_CASE in most languages
Privacy#
All conversions happen in your browser. Your text is never uploaded to any server.
Recommended Reading#
Improve your writing and coding style:
- The Elements of Style — essential reading for writing and capitalization rules
- Clean Code — essential reading for naming conventions in code
- The Pragmatic Programmer — essential reading for coding style and conventions
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