Case Converter
Change text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more — instantly. Type or paste, then click any result to copy.
Every case, explained
UPPERCASE makes every letter capital. lowercase makes every letter small. Title Case capitalizes the first letter of each word; Sentence case capitalizes only the first word of each sentence.
camelCase (myVariableName), PascalCase (MyVariableName), snake_case (my_variable_name), CONSTANT_CASE (MY_VARIABLE_NAME) and kebab-case (my-variable-name) are naming conventions used in programming. Paste any text — even existing camelCase or snake_case — and this tool re-splits it into words and rewrites it in the convention you need.
Frequently asked questions
How do I convert uppercase to lowercase?
Paste your text into the box above and copy the value shown under "lowercase". The conversion happens instantly as you type — no button to press.
What is Title Case?
Title Case capitalizes the first letter of every word, like "The Quick Brown Fox". It is commonly used for headlines and titles. Sentence case, by contrast, only capitalizes the first word of each sentence.
What is the difference between camelCase, snake_case and kebab-case?
They are naming conventions used in code. camelCase joins words with no spaces and capitalizes each word after the first (myVariableName). snake_case joins words with underscores (my_variable_name). kebab-case joins them with hyphens (my-variable-name).
Is there a limit on how much text I can convert?
No. Convert as much text as you like — everything runs in your browser, so there are no server limits and nothing you paste is uploaded anywhere.
Does this case converter work offline?
Yes. The tool runs entirely in your browser with JavaScript, so once the page has loaded it keeps working without an internet connection and keeps your text private.
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