U+21DF · Other symbol
LaTeX
\nHdownarrow
Downwards Arrow With Double Stroke Symbol ⇟
⇟ is downwards arrow with double stroke, U+21DF — \nHdownarrow in LaTeX. It was added in Unicode 1.1, and Unicode files it under Other symbol.
Also known as
- page down
Unicode 1.0 called this character down arrow with double stroke. The standard renamed it later, but documents, fonts and font-editing tools from that era still use the old name.
Codes & technical data
| Unicode | U+21DF | |
|---|---|---|
| HTML hex | ⇟ | |
| HTML decimal | ⇟ | |
| CSS | \21DF | |
| JavaScript | \u{21DF} | |
| Python | \U000021DF | |
| Java / C# | \u21DF | |
| Rust | \u{21df} | |
| Swift | \u{21DF} | |
| PHP | \u{21DF} | |
| URL encoded | %E2%87%9F | |
| UTF-8 bytes | E2 87 9F | |
| UTF-16 bytes | 21DF | |
| Base64 | 4oef | |
| Decimal | 8671 | |
| LaTeX | \nHdownarrow | |
| Category | Other symbol (So) | |
| Introduced | Unicode 1.1 | |
Will ⇟ survive being pasted?
- Normalisation. Yes. ⇟ is unchanged by NFKC, so it survives normalising systems intact.
- Legacy encodings. ⇟ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
- Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.
Other stroke characters
Unicode names 24 characters ending in “stroke”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Arrows
The core arrow set: every direction, plus doubled, dashed, hooked and looped variants. Anything not here is in one of the four supplemental arrow blocks, which exist because this one filled up.
How to type ⇟
| Windows | Type 21DF then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “downwards arrow with double stroke” |
| Linux | Press Ctrl+Shift+U, type 21df, press Enter |
| HTML | ⇟ |
About Unicode’s Other symbol category
Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.
Frequently asked questions
- How do I type the ⇟ downwards arrow with double stroke symbol?
- On Windows, type 21DF and press Alt+X. On Linux press Ctrl+Shift+U then 21df. On any system the quickest route is the copy button on this page.
- What is the code for ⇟?
- Downwards Arrow With Double Stroke is U+21DF and in LaTeX as \nHdownarrow. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⇟?
- Downwards Arrow With Double Stroke is filed under Other symbol in the Arrows block, and was introduced in Unicode 1.1. Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.