Invisible character
A character that shows nothing but still counts as text. Useful when a field refuses to stay empty — a nickname, a message, a profile line. An ordinary space will not do: it gets trimmed off the ends and collapses when repeated.
These are blank on purpose. If you wanted a character that shows something instead, see text symbols — or the aesthetic symbols people use to space out a bio without leaving it empty.
Tap to copy an invisible character
There is nothing to see — that is the point. The button copies the character; the label tells you which one.
Looks empty, counts as a character2
These take up space like a letter but draw nothing. This is what you want for a blank nickname or a form that refuses to accept an empty field.
Zero width4
No width at all. Used to break up text without a visible gap — and, less honestly, to slip past filters that look for exact words.
Wider spaces6
Visible as space, but not the ordinary one: these do not collapse when several sit together and do not disappear in HTML.