How it works
UPPER and lower case change every letter. Title Case capitalises the first letter of each word, and Sentence case capitalises the start of each sentence.
camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE are naming styles used in programming. They split your text into words, then join them in the chosen style.
Existing camelCase is split correctly, so userFirstName becomes user_first_name.
Good to know
Title Case here capitalises every word. Style guides often keep short words such as "and" and "of" in lower case, so check headlines before you publish.
Case rules for some languages differ from English. The converter uses your browser’s Unicode rules.
Frequently asked questions
What is the difference between title case and sentence case?
Title case capitalises most words, like in a book title. Sentence case capitalises only the first word of each sentence and proper names, like normal writing.
What are camelCase and snake_case used for?
They are naming styles for variables and files. camelCase is common in JavaScript, snake_case in Python and databases, and kebab-case in web addresses and CSS.
Is my text sent anywhere?
No. Conversion happens in your browser.