Blank Characters
There are a lot of white-space character in Unicode. Sometimes, such blank codepoints have a totally different meaning, but as a side-effect, they also do not contain any glyph.
The following list collects characters which might render no glyph. The exact behavior depends on the platform/operating system.
Also see Ignorables for the current list of codepoints in Unicode marked as default ignorable codepoints, which often do not render anything.
Whitespace / Other Invisible
| Name | Character | Codepoint |
|---|---|---|
| CHARACTER TABULATION | U+0009 | |
| SPACE | U+0020 | |
| NO-BREAK SPACE | U+00A0 | |
| SOFT HYPHEN | | U+00AD |
| COMBINING GRAPHEME JOINER | ͏ | U+034F |
| ARABIC LETTER MARK | | U+061C |
| SYRIAC ABBREVIATION MARK | | U+070F |
| HANGUL CHOSEONG FILLER | ᅟ | U+115F |
| HANGUL JUNGSEONG FILLER | ᅠ | U+1160 |
| OGHAM SPACE MARK | U+1680 | |
| KHMER VOWEL INHERENT AQ | ឴ | U+17B4 |
| KHMER VOWEL INHERENT AA | ឵ | U+17B5 |
| MONGOLIAN VOWEL SEPARATOR | | U+180E |
| EN QUAD | U+2000 | |
| EM QUAD | U+2001 | |
| EN SPACE | U+2002 | |
| EM SPACE | U+2003 | |
| THREE-PER-EM SPACE | U+2004 | |
| FOUR-PER-EM SPACE | U+2005 | |
| SIX-PER-EM SPACE | U+2006 | |
| FIGURE SPACE | U+2007 | |
| PUNCTUATION SPACE | U+2008 | |
| THIN SPACE | U+2009 | |
| HAIR SPACE | U+200A | |
| ZERO WIDTH SPACE | | U+200B |
| ZERO WIDTH NON-JOINER | | U+200C |
| ZERO WIDTH JOINER | | U+200D |
| LEFT-TO-RIGHT MARK | | U+200E |
| RIGHT-TO-LEFT MARK | | U+200F |
| NARROW NO-BREAK SPACE | U+202F | |
| MEDIUM MATHEMATICAL SPACE | U+205F | |
| WORD JOINER | | U+2060 |
| FUNCTION APPLICATION | | U+2061 |
| INVISIBLE TIMES | | U+2062 |
| INVISIBLE SEPARATOR | | U+2063 |
| INVISIBLE PLUS | | U+2064 |
| INHIBIT SYMMETRIC SWAPPING | | U+206A |
| ACTIVATE SYMMETRIC SWAPPING | | U+206B |
| INHIBIT ARABIC FORM SHAPING | | U+206C |
| ACTIVATE ARABIC FORM SHAPING | | U+206D |
| NATIONAL DIGIT SHAPES | | U+206E |
| NOMINAL DIGIT SHAPES | | U+206F |
| IDEOGRAPHIC SPACE | U+3000 | |
| BRAILLE PATTERN BLANK | ⠀ | U+2800 |
| HANGUL FILLER | ㅤ | U+3164 |
| ZERO WIDTH NO-BREAK SPACE | | U+FEFF |
| HALFWIDTH HANGUL FILLER | ᅠ | U+FFA0 |
| SHORTHAND FORMAT LETTER OVERLAP | | U+1BCA0 |
| SHORTHAND FORMAT CONTINUING OVERLAP | | U+1BCA1 |
| SHORTHAND FORMAT DOWN STEP | | U+1BCA2 |
| SHORTHAND FORMAT UP STEP | | U+1BCA3 |
| MUSICAL SYMBOL NULL NOTEHEAD | 𝅙 | U+1D159 |
| MUSICAL SYMBOL BEGIN BEAM | | U+1D173 |
| MUSICAL SYMBOL END BEAM | | U+1D174 |
| MUSICAL SYMBOL BEGIN TIE | | U+1D175 |
| MUSICAL SYMBOL END TIE | | U+1D176 |
| MUSICAL SYMBOL BEGIN SLUR | | U+1D177 |
| MUSICAL SYMBOL END SLUR | | U+1D178 |
| MUSICAL SYMBOL BEGIN PHRASE | | U+1D179 |
| MUSICAL SYMBOL END PHRASE | | U+1D17A |
Line Breaks / Separators
| Name | Character | Codepoint |
|---|---|---|
| LINE FEED | U+000A | |
| LINE TABULATION | U+000B | |
| FORM FEED | U+000C | |
| CARRIAGE RETURN | U+000D | |
| NEXT LINE | U+0085 | |
| LINE SEPARATOR | U+2028 | |
| PARAGRAPH SEPARATOR | U+2029 |