Case Converter
UPPER, lower, Title and Sentence case.
Your data never leaves your device — everything runs in your browser.
How to use it
- Type or paste your text into the box.
- Choose a conversion: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case.
- Check the result and press Copy.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of each word but keeps short words such as “a”, “the”, “of” and “and” lowercase unless they come first (“The Lord of the Rings”), which suits headings. Sentence case capitalizes only the first letter of each sentence (“The quick brown fox.”), which suits normal text. Proper nouns may need a manual fix afterwards.
What are camelCase, snake_case and kebab-case?
They are ways of writing several words without spaces, mostly used in programming and URLs. camelCase joins words and capitalizes each new one (userName), snake_case joins them with underscores (user_name) and kebab-case with hyphens (user-name).
How do I fix text typed with Caps Lock on?
Paste it in and choose Sentence case. Everything becomes lowercase except the first letter of each sentence and of each new line.
Does it handle accented and non-English letters?
Yes. Letters such as é, ß, ç or Greek and Cyrillic letters are converted with the correct rules for upper and lower case.
Is my text sent anywhere?
No. The conversion happens in your browser and your text never leaves your device.