Upside Down Text Generator

Flipping is a substitution, not a rotation

Text cannot be rotated in a plain-text field, so upside-down text works by swapping each letter for a different character that resembles it turned over — a becomes ɐ, e becomes ǝ, and so on — and then reversing the order so the sentence reads correctly when your brain flips it back.

Most of those substitutes come from the International Phonetic Alphabet, where turned letters represent specific sounds. A few letters have no convincing flipped counterpart and stay upright, which is normal and appears in every flipped text you have ever seen.

Three related effects

Upside down flips glyph shapes and reverses order. Mirrored uses left-right reflected shapes instead, so it reads like text seen in a mirror. Reversed leaves the letters completely alone and only reverses their order — the safest of the three, since nothing can fail to render.

For a puzzle or a joke, reversed is often more effective, because readers can still identify each letter and enjoy working it out.

• Upside down: turned glyphs plus reversed order
• Mirrored: reflected glyphs plus reversed order
• Reversed: ordinary letters in reverse order, universally safe

Punctuation and numbers

Digits are handled too, using turned lookalikes from other scripts, so a flipped phone number stays roughly recognisable. Punctuation is mapped where Unicode allows: a full stop rises to a high dot, a question mark becomes an inverted one, brackets swap sides. Anything without a counterpart passes through unchanged.