Unicode characters with the White_Space character property are considered whitespace. Common to these characters is that none of them are visible when rendered and as such their only purpose is to represent either horizontal or vertical space.

All characters in the Separator category have the White_Space character property, as do the following characters from the Other category:

  • Character Tabulation (U+0009)
  • Line Feed (U+000A)
  • Line Tabulation (U+000B)
  • Form Feed (U+000C)
  • Carriage Return (U+000D)
  • Next Line (U+0085)