Swap Case Converter
Invert the case of every letter in your text.
Flip every letter’s case
Swapping case inverts each letter individually — capitals become lowercase and lowercase becomes capitals. It is the quickest fix when caps lock was on for the wrong half of a sentence.
The phrase Hello World becomes hELLO wORLD. Digits, spaces, and punctuation are left exactly as they are, so only the letters change.
Instant and private
The conversion runs in your browser, so your text is never uploaded.
Frequently Asked Questions
What does swapping case do?
It turns every uppercase letter lowercase and every lowercase letter uppercase, leaving other characters untouched.
How is it different from other case tools?
Instead of a consistent style, it flips whatever case each letter currently has, which is useful for undoing an accidental caps-lock.
Is my text uploaded?
No. The conversion runs entirely in your browser.
Browse the full set of free, private, in-browser tools.