U+005B LEFT SQUARE BRACKET

The Unicode character U+005B, officially named LEFT SQUARE BRACKET, was introduced in Unicode version 1.1. It is part of the ASCII block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as OPENING SQUARE BRACKET.

Categorized technically as a Open Punctuation, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is not a composition and has narrow in East Asian typography. When placed in bidirectional text, it behaves as an Other Neutral character. Its visual representation remains mirrored regardless of the reading direction.