Quick answer
To type ⇄: HTML ⇄ · CSS \21c4 · or copy it from the key above.
01 Every way to type it
Every input method verified against an authoritative source — no invented Alt codes.
| Platform | Input | |
|---|---|---|
| HTML entity | ⇄ | |
| CSS content | \21c4 | |
| Linux (IBus) | Ctrl+Shift+U then 21c4 |
02 Type it yourself
Paste or type here to check it renders in your own font before you use it.
04 Related & confusable characters
Programmatically linked from the Unicode data.
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