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   August 2025
  - Copy to clipboard added.
  - Unicode 16.0 update.

   Blocks Added
   - Tulu‑Tigalari – new: 80 characters
   - Garay – new: 69 characters
   - Gurung Khema – new: 58 characters
   - Kirat Rai – new: 58 characters
   - Todhri – new: 52 characters
   - Sunuwar – new: 44 characters
   - Ol Onal – new: 44 characters

MATHEMATICAL DOUBLE-STRUCK SMALL J character

MATHEMATICAL DOUBLE-STRUCK SMALL J specifications

Name:

MATHEMATICAL DOUBLE-STRUCK SMALL J

Hex Number:

U+1D55B

Decimal Number:

120155

HTML Entity (Dec):

𝕛

HTML Entity (Hex):

𝕛

Category:

Ll (Lowercase Letter)

Bidi Class:

L (Left-to-Right)

Mirrored:

Decomposition:

<font> 006A

Combining Class:

Unicode Block:

Mathematical Alphanumeric Symbols

Script:

Common

Plane:

Plane Code:

SMP (Supplementary Multilingual Plane)

Plane Range:

10000-1FFFF

Character Preview:

𝕛

About MATHEMATICAL DOUBLE-STRUCK SMALL J

Mathematical Double-struck Small J (U+1D55B) is a Unicode lowercase letter from the Mathematical Alphanumeric Symbols block. It resides on Plane 1 (SMP, Supplementary Multilingual Plane), has bidirectional class L (left-to-right), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as 𝕛 or 𝕛. Because it is outside the Basic Multilingual Plane, proper font support is required; otherwise a fallback box may be shown.