Top Left Corner Symbol

A symbol from the Bracket Symbols collection. Click the symbol or the button below to copy.

Symbol: ⌜
Unicode: U+231C
HTML entity: ⌜
Category: Bracket Symbols

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53 of 56 in the bracket symbols collection

About the top left corner symbol

The glyph is a corner bracket that resembles the top-left corner of a rectangle, formed by a short horizontal stroke meeting a short vertical stroke at a right angle. It is part of a set of four quadrant corner symbols used to delineate areas or boundaries in technical diagrams, mathematical notation, or text layout.

As a miscellaneous technical symbol, this character is typically employed in schematic drawings, logic diagrams, or as a visual marker for the upper-left edge of a framed region. It may also appear in archaic or specialized typesetting to indicate the start of a quoted passage or a note in the margin.

How to type Top Left Corner

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options

In Word / Outlook: type 231C then press Alt + X.
Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options

Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 231C.
Or: Control + Command + Space opens the Character Viewer — search by name.