Text case styles explained, with examples
Updated 21 October 2026
Tool for this guide: Case converter
Short answer: paste your text into the case converter and pick a case. The result appears instantly, ready to copy. To fix text typed with Caps Lock on, choose Sentence case.
Writing cases
| Case | Example | Use it for |
|---|---|---|
| Sentence case | The quick brown fox jumps | Normal text, many modern headings |
| Title Case | The Quick Brown Fox Jumps over the Lazy Dog | Book and article titles |
| Capitalize Each Word | The Quick Brown Fox Jumps Over The Lazy Dog | Names, labels |
| UPPERCASE | THE QUICK BROWN FOX | Short labels, warnings |
| lowercase | the quick brown fox | Tags, casual style |
Title Case keeps short words like "a", "and", "of" and "the" lowercase unless they come first, as most style guides do. Capitalize Each Word capitalises everything.
Code and file name cases
| Case | Example | Common in |
|---|---|---|
| camelCase | quickBrownFox | JavaScript variables |
| PascalCase | QuickBrownFox | Class and component names |
| snake_case | quick_brown_fox | Python, databases, file names |
| kebab-case | quick-brown-fox | URLs, CSS classes |
| CONSTANT_CASE | QUICK_BROWN_FOX | Constants, environment variables |
For web addresses, kebab-case is the most common and the easiest to read in search results.
Step by step
- Open the case converter and paste your text, any length.
- Pick a case.
- Copy the result or download it.
Your text stays in your browser.
Questions
How do I fix text typed with Caps Lock on?
Paste it in and choose Sentence case. Names and acronyms may need a quick manual fix afterwards.
Which case should I use for headings?
Pick one and use it everywhere. Sentence case is easier to read; Title Case looks more formal.
Try it now
Change text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more, then copy it in one click.
Open case converter