Will fancy fonts work on Instagram and TikTok?

Yes — these are unicode characters, not images, so they render in bios, captions, and comments on most apps.

Do fancy fonts hurt SEO or accessibility?

Don't use them for body content or headings — screen readers and search engines read plain text best.

Why does Upside Down look reversed?

It maps each letter to its flipped unicode twin and reverses the string, like classic flip-text.