Text Case Converter – Change Letter Case Instantly
Convert text to sentence case, lowercase, UPPERCASE, Title Case, camelCase, snake_case, kebab-case and more — instantly, free, with no signup.
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Input Text
Converted Output
Sentence Case
Case Format Reference
Sentence case
The quick brown fox
lowercase
the quick brown fox
UPPERCASE
THE QUICK BROWN FOX
Title Case
The Quick Brown Fox
camelCase
theQuickBrownFox
PascalCase
TheQuickBrownFox
snake_case
the_quick_brown_fox
kebab-case
the-quick-brown-fox
CONSTANT_CASE
THE_QUICK_BROWN_FOX
aLtErNaTiNg
tHe QuIcK bRoWn FoX
iNVERSE cASE
tHE qUICK bROWN fOX
dot.case
the.quick.brown.fox
Quick Answer
A text case converter changes the capitalization style of any text in one click — sentence case, lowercase, UPPERCASE, Title Case, camelCase, snake_case, kebab-case, CONSTANT_CASE and more. Type or paste your text above and the converted version appears instantly, for free.
What Is a Case Converter?
A case converter transforms the capitalization of your text into a different style. Writers use it to fix inconsistent capitalization, developers use it to generate correctly named variables, and marketers use it to style headlines and titles.
How to Use the Case Converter
- Paste or type your text into the input box (or use Upload / Paste from clipboard).
- Pick a case from the tabs above — the output updates in real time.
- Copy or download the converted text with the action buttons.
Available Cases
| Case | Example | Best For |
|---|---|---|
| Sentence case | This is a sentence. | Paragraphs and articles |
| lowercase | this is lowercase | URLs, file names |
| UPPERCASE | THIS IS UPPERCASE | Emphasis, headings |
| Title Case | This Is Title Case | Titles and headlines |
| camelCase | thisIsCamelCase | JavaScript variables |
| PascalCase | ThisIsPascalCase | Class names, components |
| snake_case | this_is_snake_case | Python, file names |
| kebab-case | this-is-kebab-case | CSS classes, URLs |
| CONSTANT_CASE | THIS_IS_CONSTANT | Constants, env vars |
Why Use Our Case Converter?
- Real-time conversion as you type
- 12+ case styles including developer formats
- Upload and download text files
- 100% private — text never leaves your browser
Conclusion
Whether you are formatting a headline, cleaning up pasted text, or naming a variable, our free case converter has you covered. Try it now — just type above and pick a case.
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FAQ
Frequently Asked Questions
Quick answers to common questions
Sentence case, lowercase, UPPERCASE, Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, alternating, inverse and dot.case — 12 styles in total.
Yes, it is completely free with no signup required. Results appear instantly as you type.
Yes — upload a text file with the Upload button, convert it, and download the result using the Download button.
Yes. It runs entirely in your browser and works on any device — desktop, tablet or phone.
No. All conversion happens locally in your browser. Your text is never transmitted or stored.
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