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The UseCOS Case Converter transforms text strings between standard editorial formats (Sentence case, Title Case, lowercase, UPPERCASE) and software developer naming conventions (camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE) 100% in-browser with live statistics.
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case.
Choosing the right capitalization format is essential for clear writing, copywriting, URL structures, and clean source code. Here is how each case behaves:
| Case Format | Example Output | Primary Use Cases |
|---|---|---|
| Sentence case | The quick brown fox jumps. | Standard paragraph writing, emails, UI button labels |
| Title Case | The Quick Brown Fox Jumps | Blog headlines, book titles, article headings |
| camelCase | theQuickBrownFox | JavaScript, TypeScript, Java, and C# variable & method names |
| PascalCase | TheQuickBrownFox | Class names, React components, TypeScript types and interfaces |
| snake_case | the_quick_brown_fox | Python variables, SQL column names, database identifiers |
| kebab-case | the-quick-brown-fox | URL slugs, CSS class selectors, CLI flags, package names |
| CONSTANT_CASE | THE_QUICK_BROWN_FOX | Environment variables, global constants, enums |
Detailed text analysis with reading level and keyword density.
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