Paste text, hit a button, get it in UPPERCASE, lowercase, Title Case, Sentence case or inverted — all in your browser.
You wrote a headline in lowercase, your code style wants PascalCase, your boss wants Title Case — and now you're retyping it by hand. Stop. This tool flips the case for you.
Five buttons: UPPER, lower, Title Case, Sentence case, and Invert (swaps each letter's case). Paste on the left, click, copy the result on the right.
It's tiny but you'll use it constantly — social captions, email subjects, cleaning a pasted block, fixing a shouty paragraph.
Runs entirely in your browser; the text never leaves your device. (Anonymous analytics only — privacy policy.)
Quick tip: Sentence case only capitalizes after a period, so make sure your sentences end with a dot if you want every one fixed.
Paste text and click a case button (UPPER, lower, Title, Sentence or Invert); the converted text appears below for copying.