How to use the Case Conversion Guide
Correct capitalization isn't just about grammar—it's about clean code, professional design, and impactful copywriting. Search engines often rewrite page titles in search results, but using proper Title Case increases your Click-Through Rate (CTR) by making headlines stand out.
💻 Developer Standards
• camelCase: JavaScript variables (myVariable)
• snake_case: Python variables (my_variable)
• kebab-case: URL slugs & CSS (my-class)
• PascalCase: React components (MyComponent)
🎨 UX Writing Rules
Modern apps (Google, Apple, Spotify) prefer Sentence case for buttons and headers because it feels friendlier and is easier to scan than Title Case.
⚖️ Title Case Wars: AP vs. Chicago
Not all Title Case is the same. AP Style capitalizes prepositions of 4+ letters (e.g., 'With'), while Chicago Manual keeps them lowercase unless they start the sentence. This tool uses a standard algorithm compatible with most web content.
The Formula
Case Style Cheat Sheet
| Style | Example | Best For |
|---|---|---|
| UPPERCASE | HELLO WORLD | Acronyms, Warnings, Short Buttons |
| lowercase | hello world | Poetic style, modern branding |
| Title Case | Hello World | Book Titles, H1 Headlines |
| Sentence case | Hello world | Standard body text, UI Labels |