What is inverse case?

Inverse case (also called swap case or toggle case) flips each letter: Hello World becomes hELLO wORLD.

When would I use inverse case?

It's useful for fixing text that was accidentally typed with Caps Lock on, or for creative text effects.

No. Only alphabetic characters are affected. Numbers, spaces, and symbols pass through unchanged.

Case Converters

Flip the case of every character — uppercase becomes lowercase and vice versa.

100% client-side — your text never leaves your browser

Input

0 characters|0 words|0 lines

Output

0 characters|0 words|0 lines

Enter text with mixed casing.
Every uppercase letter becomes lowercase and every lowercase letter becomes uppercase.
Copy the inverted result.