Case Converter
Convert text case instantly. Free, no signup, runs in your browser.
How It Works
Type or paste text, then click any case button. The text is instantly converted. Use Copy to copy the result to your clipboard.
Case Types Explained
UPPER CASE capitalizes all letters. lower case makes everything lowercase. Title Case capitalizes the first letter of each word. Sentence case capitalizes only the first letter of each sentence.
camelCase, snake_case, and kebab-case are naming conventions used in programming — for variable names, file names, and URL slugs respectively.
Case Examples
The same phrase, hello world example, rendered in each supported case:
| Case | Result |
|---|---|
| UPPER CASE | HELLO WORLD EXAMPLE |
| lower case | hello world example |
| Title Case | Hello World Example |
| Sentence case | Hello world example |
| camelCase | helloWorldExample |
| snake_case | hello_world_example |
| kebab-case | hello-world-example |
Common Uses
Writers use it to fix ALL-CAPS pasted text or format headlines in Title Case. Developers convert names between camelCase, snake_case, and kebab-case when moving code between languages or building URL slugs. It is also handy for cleaning up spreadsheet columns and data before import.
Frequently Asked Questions
How do I change the case of text online?
Paste or type your text in the box, then click a case button such as UPPER CASE, lower case, or Title Case. The converted text appears instantly in the Result box, and Copy result copies it to your clipboard.
What case types can this converter produce?
Seven: UPPER CASE, lower case, Title Case, Sentence case, camelCase, snake_case, and kebab-case. Each button rewrites your text in that style without changing the original words.
What is the difference between camelCase, snake_case, and kebab-case?
All three join words without spaces for use in code. camelCase capitalizes each word after the first (myVariableName), snake_case joins words with underscores (my_variable_name), and kebab-case joins them with hyphens (my-variable-name), often used for URL slugs.
How is Title Case different from Sentence case?
Title Case capitalizes the first letter of every word, like a headline. Sentence case capitalizes only the first letter of each sentence and lowercases the rest, the way ordinary prose is written.
Is my text uploaded to a server?
No. The conversion runs entirely in your browser using JavaScript, so your text never leaves your device and nothing is stored or sent anywhere.