| Character | ⏹ |
| Name | Black Square For Stop |
| Unicode Code Point | U+23F9 |
| Decimal Value | 9209 |
| Hex Value | 0x23F9 |
| Category | Misc Technical |
| Windows Alt Code | Not available — use copy/paste |
| Word Alt+X Code | 23F9 + Alt+X |
| Mac Shortcut | Not available — use copy/paste |
| HTML Entity | ⏹ |
| HTML Code (Dec / Hex) | ⏹ / ⏹ |
| CSS Content Code | content: "\23F9"; |
| JavaScript Unicode Escape | "\u{23F9}" |
Black Square For Stop is a technical symbol most often seen in engineering diagrams, computer keyboard labeling, user-interface icon sets, or technical documentation where a precise, standardized pictogram is more useful than a text label.
Unicode block: Miscellaneous Technical (U+2300–U+23FF). This block is a catch-all for technical symbols from engineering, computing, and instrumentation — keyboard key icons, technical drawing marks, and control symbols that didn't fit any other Unicode category.
At Unicode code point U+23F9 (decimal 9209), Black Square For Stop is the 250th of 256 characters cataloged in this category on How To Type Any Symbol. In terms of typing methods, like most characters outside the 0–255 legacy codepage range, it has no dedicated Alt-code or single-key shortcut on Windows or Mac, so copy-paste is the standard, universal method for typing it. Regardless of platform, clicking the copy button above places the exact character on your clipboard, ready to paste into any application that accepts Unicode text.
💡 Good to know: Font support for this block is inconsistent outside of dedicated technical or icon fonts — always verify rendering in your target environment before publishing.
No alt code available — click the copy button above and paste with Ctrl+V.
No dedicated shortcut — click the copy button above and paste with Cmd+V.
Click the symbol above to copy it, then paste anywhere — works on every device and OS.
Use the entity ⏹ in your HTML.