An MCP server for creating, modifying, and validating Nomi.AI group chats — scaffold folders, add characters, and validate character limits.

App Store & Google Play character limits (name, subtitle, keywords, descriptions, IAP fields) as a typed lookup table — no network calls, zero dependencies.

Useful TypeScript utilities.

Map of named character references

MCP server that audits & optimizes App Store and Google Play metadata (ASO): score a listing, check character limits, and clean up the iOS keyword field. By ASO Agency.

A highly customizable rich text editor React component built with Lexical - Features include mentions, tags, emoji picker, code blocks, image uploads, paste formatting, character limits, markdown shortcuts, and fully configurable toolbars

Map of named character references from HTML 4

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

Decode named character references

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

micromark utility to handle character codes

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to decode numeric character references

POSIX character classes for creating regular expressions.

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

Convert character encodings in pure javascript.

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

Check if a character is a word character

Check if a character is a whitespace character

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.