How it works
The order of the characters is flipped, so Hello, world! becomes !dlrow ,olleH.
Line breaks are reversed too, so the last line comes first.
Characters are reversed the way you see them. Emoji with skin tones, family emoji, flags and letters with separate accent marks stay intact instead of being split into broken pieces, which happens with simpler reverse-text tools.
What people use it for
Checking palindromes, writing puzzles and mirror text for games, quick tests of how software handles unusual input, and simple text effects for social media.