🔠 Case Converter
Fix accidental caps lock, format headlines or rename variables – 11 cases, converted as you type.
How to use the Case Converter tool
- Paste or type your text.
- Click the case you want – the result updates live.
- Copy or download the converted text.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of each major word ("The Lord of the Rings"), leaving short words like "of", "the" and "and" lowercase. Sentence case only capitalises the first word of each sentence, like normal prose.
How are camelCase, snake_case and kebab-case built?
Text is split into words on spaces, punctuation and existing case changes (so "userID" and "user id" both work), then joined: camelCase → userId, snake_case → user_id, kebab-case → user-id, CONSTANT_CASE → USER_ID. Each line is converted separately.
Does it work with accented and non-Latin letters?
Yes. Upper/lower conversion uses Unicode rules, so é→É, ß→SS and Greek or Cyrillic letters convert correctly.
Is my text sent anywhere?
No. Conversion happens in your browser as you type; nothing is uploaded or stored.