POSIX character classes for creating regular expressions.

Check if a character is hexadecimal

Serialize (encode) HTML character references

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

Parse HTML character references

Check if a character is alphabetical

Check if a character is alphanumerical

Check if a character is decimal

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

Get a KeyboardEvent.key-style string from an event

Convert character encodings in pure javascript.

Low footprint ECMAScript source code parser

A JavaScript library that breaks strings into their individual user-perceived characters (including emojis!)

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

Fastest random ID and random string generation for Node.js

The Yeoman character in your CLI. Like wat.

micromark utility to decode markdown strings

A regular expression to match all Emoji-only symbols as per the Unicode Standard.

Strip non-character code points from a string.

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.