Example
Hello from Australia!
¡ɐᴉlɐɹʇsn∀ ɯoɹɟ ollǝH
How it works
Each letter is replaced with a character that looks like it has been rotated 180°, and the order is reversed so the text reads correctly when you turn your screen over. A few letters use the closest available look-alike.
Fun uses
Upside down text is a classic for April Fools’ messages, jokes about Australia (“down under”), puzzle hints, and posts that ask readers to turn their phone around. It is also a fun way to hide a punchline in plain sight.
Which letters flip well
Many lowercase letters have a natural upside-down match: b and q, d and p, n and u. Others borrow characters from the phonetic alphabet, such as ɐ for a and ǝ for e. Capitals and some digits have fewer perfect matches, so a few use the closest available character.