Case Converter
UPPERCASE, lowercase, Title, camelCase & more.
100% private — runs in your browser, nothing is uploaded.
How to use the Case Converter
- 1Enter your text
Type or paste the text you want to reformat into the box.
- 2Pick a case
Click UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case.
- 3Copy the result
The text transforms in place — click Copy result to use it elsewhere, or chain another case.
Examples
| Input | Output |
|---|---|
hello world | HELLO WORLD |
HELLO WORLD | hello world |
the quick brown fox | The Quick Brown Fox |
user first name | userFirstName |
User First Name | user_first_name |
Free online case converter
The case converter changes the capitalisation of your text in one click. Whether you accidentally left Caps Lock on, need a heading in Title Case, or want a variable name in camelCase or snake_case, this tool converts it instantly.
Supported cases
- UPPERCASE — every letter capital.
- lowercase — every letter small.
- Title Case — First Letter Of Each Word.
- Sentence case — first letter of each sentence.
- camelCase — for JavaScript/programming variables.
- snake_case & kebab-case — for file names, slugs and code.
Everything runs locally in your browser, so your text stays private and the tool even works offline.
Frequently Asked Questions
What text cases can I convert to?
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case. Click any button to transform your text instantly.
Does converting case lose my text?
No. Each conversion works on the current text in the box, so you can chain conversions or click Clear to start over. Nothing is uploaded — it all runs in your browser.
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word (great for headings). Sentence case only capitalises the first letter of each sentence, like normal prose.
How do I fix text typed with Caps Lock on?
Paste the all-caps text and click lowercase to make it all small, or Sentence case to capitalise just the first letter of each sentence.
What are camelCase, snake_case and kebab-case used for?
They are naming styles used in programming: camelCase for variables, snake_case for database columns and Python, and kebab-case for URLs, file names and CSS classes.