Symbol For Null

Group: Technical

Keywords

technical

About this character

Symbol For Null belongs to the Technical group and is encoded at U+2400. It was added in Unicode 0.0.

Shortcode

Chat apps such as Slack, Discord and GitHub accept this shortcode instead of the character itself.

Technical codes

Code point: U+2400
Hex: 2400
Decimal: 9216
HTML: ␀
CSS: \2400
JavaScript: \u2400
Python: \u2400
UTF-8: E2 90 80

The same character is drawn differently by each operating system and font.

Diameter Sign U+2300
Electric Arrow U+2301
House U+2302
Up Arrowhead U+2303
Down Arrowhead U+2304
Projective U+2305
Perspective U+2306
Wavy Line U+2307
Left Ceiling U+2308
Right Ceiling U+2309
Left Floor U+230A
Right Floor U+230B
Bottom Right Crop U+230C
Bottom Left Crop U+230D
Top Right Crop U+230E
Top Left Crop U+230F
Reversed Not Sign U+2310
Square Lozenge U+2311
Arc U+2312
Segment U+2313
Sector U+2314
Telephone Recorder U+2315
Position Indicator U+2316
Viewdata Square U+2317

Questions

Why does this emoji look different on my phone?

Unicode standardises the meaning of a character, not its drawing. Apple, Google, Microsoft and Samsung each ship their own artwork, so the same code point changes shape between devices.

Does copying work everywhere?

The character is copied as plain text, so it pastes into any app that accepts text. If the receiving app has no font for it, you will see an empty box instead.