Case Converter
Switch text between UPPER, lower, Title and Sentence case — or code styles like camelCase and snake_case.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
Input
Output
How to use Case Converter
- 1
Paste your text into the input box.
- 2
Pick the case you want.
- 3
Copy or download the converted text.
Features
- 10 stylesWriting cases and programming cases in one place.
- Smart splittingRecognizes existing camelCase, snake_case and kebab-case words.
- Unicode awareUpper and lower case work correctly for accented letters.
Frequently asked questions
What’s the difference between Title case and Sentence case?
Title case capitalizes every word. Sentence case capitalizes only the first letter of each sentence.
How are accents handled in camelCase or snake_case?
Programming cases remove accents so the result is safe for variable names, file names and URLs.
Is there a length limit?
No practical limit — conversion happens instantly in your browser.