Copyglyph
U+1F51 · Greek Small Letter Upsilon with Dasia · Greek Extended · Greek

Greek Small Letter Upsilon with Dasia ὑ

(U+1F51) 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: Greek Small Letter Upsilon with Dasia is part of the Symbols family (block: Greek Extended). 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+1F51 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+1F51
  • General Category: Ll
  • Age: 1.1
  • Bidi Class: L
  • Decomposition: 03C5 0314
  • Block: Greek Extended
  • Script: Greek
  • UTF-8: E1 BD 91
  • UTF-16: 1F51
  • UTF-32: 00001F51
  • HTML dec: ὑ
  • HTML hex: ὑ
  • JS escape: \u1F51
  • Python \N{}: \N{GREEK SMALL LETTER UPSILON WITH DASIA}
  • Python \u: \u1F51
  • Python \U: \U00001F51
  • URL-encoded: %E1%BD%91
  • CSS escape: \1F51
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+1F51 or a built‑in character picker.

HTML: use the numeric entity ὑ (hex) or ὑ (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.