Case Converter
Convert any text between UPPERCASE, lowercase, Title Case, sentence case and more — one click, no retyping.
About this tool
Every writer has done it: a paragraph typed with Caps Lock on, a title that needs Title Case, a headline in the wrong style for a new document. Retyping is slow and error-prone; this converter applies the change to the whole text at once.
Title Case capitalises the first letter of every word; Sentence case capitalises the first letter of each sentence and lowercases the rest — handy for rescuing ALL-CAPS text. Sentence case preserves ALL-CAPS acronyms like NASA instead of flattening them, and both modes handle quoted sentences and names like O'Brien and McDonald. Developer modes — camelCase, PascalCase, snake_case and kebab-case — cover code and file names. The alternating and reverse modes are there for social posts and fun. Everything happens in your browser, so pasted documents never leave your device.
How to use it
- Paste your text into the top box.
- Click the case you want — the result appears below instantly.
- Click “Copy result” and paste it where you need it.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word (Like This). Sentence case capitalises only the first letter of each sentence, like a normal sentence. Headlines usually use Title Case; body text uses sentence case.
Can it fix text typed in ALL CAPS?
Yes — paste it, choose Sentence case or lowercase, and the converter lowercases everything except sentence starts. Proper names will need a quick manual pass, as with any automated conversion.
Is there a word or size limit?
No practical limit — the conversion runs in your browser, so even a full document converts instantly.