U+21F3 "⇳" Up down White Arrow Unicode Character
Unicode Version 17.0
⇳
U+21F3 "⇳" Up down White Arrow is a typographical symbol depicting a bidirectional vertical arrow with hollow or white arrowheads, pointing both upward and downward. It is officially classified as an arrow in the Unicode standard and is often used in digital interfaces, documentation, and diagrams to indicate the ability to scroll, expand, or navigate in both vertical directions, or to represent a toggle between two states. Its design distinguishes it from its filled counterpart by having an outlined appearance, which can be preferable in contexts requiring a lighter visual footprint or specific aesthetic compatibility.
General Properties
| Code Point | U+21F3 |
| Version Added | 3.0 |
| Name | Up down White Arrow |
| Block | Arrows |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⇳ |
| HTML Hex Encoding | ⇳ |
| UTF-8 Encoding | 0xE2 0x87 0xB3 |
| UTF-16 Encoding | 0x21F3 |
| UTF-32 Encoding | 0x000021F3 |
| C/C++/Java Escape | \u21f3 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |