Glob To Regular Expression is a Node.js library that converts glob patterns (e.g., `"*.min.js"`) into regular expressions for pattern matching. It supports extended glob features like `?`, `[a-z]`, and `{*.html, *.js}` with the `{ extended: true }` option, and handles globstars `**` with `{globstar: true}`. This tool is ideal for developers needing to match file paths or strings against glob patterns in JavaScript applications.