Categories of Invisible Characters

A blank braille pattern that appears as an invisible character in most contexts.

The standard space character. Most commonly used invisible character.

Similar to a regular space, but prevents line breaks from occurring at that point.

Invisible character with zero width. Used to create line breaks in text without visible spaces.

Korean invisible character used in Hangul syllable blocks.

Prevents characters from joining together when they would normally join.

Causes characters to join together when they would normally not join.

Similar to Zero Width No-Break Space but with different semantics.

Invisible until the word is broken at the end of a line, then appears as a hyphen.

A space that's one-fifth (sometimes one-sixth) of an em wide.