Horizontal Line Extension ⎯
⎯ (U+23AF) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.
What it is and where it’s used: Horizontal Line Extension is part of the Symbols family (block: Miscellaneous Technical). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.
Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+23AF in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.
Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.
Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.
See our category page for related symbols.
Technical details
- Codepoint:
U+23AF - General Category:
Sm - Age:
3.2 - Bidi Class:
ON - Block:
Miscellaneous Technical - Script:
Common - UTF-8:
E2 8E AF - UTF-16:
23AF - UTF-32:
000023AF - HTML dec:
⎯ - HTML hex:
⎯ - JS escape:
\u23AF - Python \N{}:
\N{HORIZONTAL LINE EXTENSION} - Python \u:
\u23AF - Python \U:
\U000023AF - URL-encoded:
%E2%8E%AF - CSS escape:
\23AF
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+23AF or a built‑in character picker.
HTML: use the numeric entity ⎯ (hex) or ⎯ (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.