Port of C's wcwidth() and wcswidth()

A wide-character aware text alignment function for use on the console or with fixed width fonts.

Textwrap for javascript/nodejs. Correctly handles wide characters (宽字符) and emojis (😃). Wraps strings with option to break on words.

Get the visual width of a string - the number of columns required to display it

A regex to match any full character, considering weird character ranges.

Determine the East Asian Width of a Unicode character

POSIX character classes for creating regular expressions.

Get the line and column number of a specific character in a string

Detect the dominant newline character of a string

Get East Asian Width from a character.

Escape RegExp special characters

Map of named character references

List of legacy HTML named character references that don’t need a trailing semicolon

Decode named character references

A robust HTML entities encoder/decoder with full Unicode support.

Generate a unique random string

Map of named character references from HTML 4

Map of invalid numeric character references to their replacements, according to HTML

Count how often a character (or substring) is used in a string

micromark utility to decode markdown strings