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U+2E57 · Left Square Bracket with Double Stroke · Supplemental Punctuation · Common

Left Square Bracket with Double Stroke ⹗

(U+2E57) 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: Left Square Bracket with Double Stroke is part of the Symbols family (block: Supplemental Punctuation). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The symbol LEFT SQUARE BRACKET WITH DOUBLE STROKE, encoded at U+2E57, belongs to the Supplemental Punctuation block. It is used mainly as a bracket mark in some writing and coding systems. In history, similar double-stroke brackets appear to show emphasis or special grouping, though this exact glyph is less common in standard text. In practice, editors and developers may rely on it to delimit parameters, examples, or quoted text, especially when other brackets are already in use. The character's design signals a close connection to square brackets while indicating a stronger separation or a variant form. Over time, writers adopted such marks to reduce confusion in nested structures or to mark optional content in explanations. In current usage, this bracket helps readers and machines parse text with clear boundaries. When seen, it often appears alongside other punctuation used for grouping or quoting. As a Unicode symbol, it has a defined code point and name in the Common script. Its role stays practical: to mark grouped data, parameters, or quoted material in code and prose.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2E57 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+2E57
  • General Category: Ps
  • Age: 14.0
  • Bidi Class: ON
  • Block: Supplemental Punctuation
  • Script: Common
  • UTF-8: E2 B9 97
  • UTF-16: 2E57
  • UTF-32: 00002E57
  • HTML dec: ⹗
  • HTML hex: ⹗
  • JS escape: \u2E57
  • Python \N{}: \N{LEFT SQUARE BRACKET WITH DOUBLE STROKE}
  • Python \u: \u2E57
  • Python \U: \U00002E57
  • URL-encoded: %E2%B9%97
  • CSS escape: \2E57
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+2E57 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.