@discordjs/docgen with typescript support ONLY, THIS CANT BE USED WITH JS. Original description:
discord.js-docgen
This is the application that generates the docs.json files for discord.js and
discord.js-commando. It parses all JSDocs in any given directories, and outputs
a single JSON file with data about all classes, properties, methods, typedefs, etc. It also accepts custom docs files.
This is handy for documentation websites, so that they can load the data dynamically and display it however they need.