Toggle Case Converter
Use our free online Toggle Case Converter to switch uppercase letters to lowercase and vice versa. Perfect for quickly correcting text or creating fun styles.
Example: Hello World! → hELLO wORLD!
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Input: 0 characters · 0 words | Output: 0 characters · 0 words
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💡 Toggle Case switches letter cases for emphasis or fun.
Case Converters Comparison
| Mode | Example Input | Example Output |
|---|---|---|
| UPPERCASE | hello world | HELLO WORLD |
| lowercase | HELLO WORLD | hello world |
| Title Case | hello world from letter lab | Hello World From Letter Lab |
| Sentence case | hello WORLD. THIS is LETTER lab. | Hello world. This is Letter lab. |
| camelCase | hello world from letter lab | helloWorldFromLetterLab |
| PascalCase | hello world from letter lab | HelloWorldFromLetterLab |
| snake_case | Hello World From Letter Lab | hello_world_from_letter_lab |
| kebab-case | Hello World From Letter Lab | hello-world-from-letter-lab |
| CONSTANT_CASE | Hello World From Letter Lab | HELLO_WORLD_FROM_LETTER_LAB |
| Toggle Case | Hello World! | hELLO wORLD! |
Frequently Asked Questions
What does the Toggle Case Converter do?
It switches uppercase letters to lowercase and lowercase letters to uppercase.
Can it handle punctuation and numbers?
Yes, only letters are toggled; numbers and punctuation remain unchanged.
Where is my text saved?
Your text is stored in your browser sessionStorage and cleared when the session ends.
Do I need an account to use this tool?
No, all tools are free to use without signing up.
Can I use this tool on mobile devices?
Yes, the interface is fully responsive and works on all screen sizes.
How do I copy the converted text?
Use the Copy button next to the output box to copy your text to the clipboard.