Fancy Unicode text generator

Sixteen, all from one input: bold, italic, bold-italic, script, fraktur, double-struck, monospace, sans, bubble, square, fullwidth, small-caps, upside-down, strikethrough, underline and zalgo, each printed on its own labeled line.

Each maps plain ASCII letters and digits onto a separate block of Unicode mathematical alphanumeric characters by adding a fixed offset to the code point, with a small table of exceptions for slots Unicode left as gaps, such as italic h using the existing Planck constant symbol instead.

Because it stacks a random number of combining marks above and below each letter, chosen with Math.random on every run; there is no seed, so the same input text produces a visually different zalgo result each time you run it.

No. Unicode has no true upside-down capital letters, so uppercase input is lowercased first and each character is swapped for a visually similar-looking character from a fixed table, then the whole string is reversed; it is a look-alike substitution, not a real rotation.

It refuses with "give some text to restyle" once the input is trimmed and found to be empty, rather than returning sixteen blank lines.

Not always. They are real but unusual Unicode code points rather than styled ASCII, so some fonts, older systems or strict input filters can show missing-character boxes, and screen readers generally cannot read them as normal letters.