CONSTANT CASE Converter
Turn text into CONSTANT_CASE, where words are uppercase and separated by underscores. Commonly used in programming for constants.
Example: Hello World From Letter Lab → HELLO_WORLD_FROM_LETTER_LAB
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Input: 0 characters · 0 words | Output: 0 characters · 0 words
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💡 Use this tool to transform your text efficiently.
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 is CONSTANT_CASE?
CONSTANT_CASE capitalizes all letters and separates words with underscores.
Where is it used?
It is commonly used in programming for constant values.
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.