⇄ Special characters
Arrows · U+21C4
| Unicode | U+21C4 (8644) |
|---|---|
| HTML entity | ⇄ |
| CSS | content: "\21C4" |
| JavaScript | "\u21C4" |
| URL encoded | %E2%87%84 |
| UTF-8 size | 3 bytes |
| Category | Arrows |
For pointing a direction — shorter than a word and understood at a glance in tables and signs.
How to read this
- A Unicode code point is a name tag unique to each character. Different fonts, same number — still the same character.
- In HTML, the numeric form &#number; works everywhere. Named entities like ♥ read nicer but exist only for some characters.
- In CSS, use a backslash and hexadecimal: content: "\2764".
- If the character shows as a box, the copy did not fail — that font simply has no glyph for it. Another font will show it.
Frequently asked questions
Q. What is the Unicode code point of ⇄?
U+21C4, which is 8644 in decimal. Stored as UTF-8 it takes 3 bytes.
Q. How do I write ⇄ in HTML?
Use ⇄ and every browser shows the same character. This character has no named entity, so the numeric form is the one to use.
Q. How do I use ⇄ in CSS or JavaScript?
In CSS, content: "\21C4". In JavaScript, "\u21C4". In a URL it becomes %E2%87%84.
Q. What kind of character is ⇄?
It belongs to the arrows group. The rest of that group is listed further down this page, ready to copy.