Fancy Text Fullwidth

That stretched-out text you see in social bios and playlist covers is not a font or an image: it is a separate set of Unicode characters called fullwidth, inherited from Japanese typography, where a Latin letter takes the same width as an ideograph. Because these are real characters rather than formatting, they survive copy and paste into fields that strip bold and italics.

The conversion is plain arithmetic: every ASCII character from the exclamation mark to the tilde gets 65248 added to its code point, landing in U+FF01 to U+FF5E, and the regular space becomes the ideographic space U+3000, which is wide as well. Anything outside that range passes through untouched, which is the catch for accented languages: in 'ação' only the a and the o convert, giving 'ａçãｏ', half wide and half normal. Emoji and line breaks also pass through.

Test it where you plan to use it. Plenty of systems apply NFKC normalization and quietly undo the effect on save, especially username fields and search boxes. Fullwidth text also confuses screen readers and breaks word search, so keep it out of page titles, email subject lines and anything that has to be findable later. The conversion runs in your browser, and since there is no copy button, select the output box.