Glitch & Zalgo — Fancy Text Generator
Glitch and Zalgo styles are the creepy corner of fancy text. Zalgo stacks combining marks above and below your letters until they look corrupted; upside-down and mirror text flip and reverse your words instead. They are made for horror posts, Halloween, creepy usernames and meme captions — and they are at their best in very short bursts. A single glitched word is striking; a whole paragraph is unreadable. These styles are also the least accessible on the site: screen readers struggle with them, search engines cannot match them, and some apps strip the marks entirely. Use them for a word or a line, never for anything important, and test the result in the app before you rely on it.
Glitch styles also teach a useful lesson about how text works: they make visible the fact that a letter and its marks are separate characters. That is why a Zalgo word is so long in character terms, and why some apps strip the marks and leave the plain word behind. Upside-down and mirror text work differently — they use lookalike letters and reversed order, not extra marks — which is why they survive in more apps than Zalgo does. If you want a creepy effect that is more likely to survive, upside-down text is the safer choice; if you want the full corrupted look and the app allows it, Zalgo is the strongest one there is.