List of free package-manager stuff for developerππ½
If you're looking for all programming tools around package-manager (not just free). Check this page List of package-manager Programming Tools

npm
Online repository for the publishing of open-source Node.js projects
Tag: javascript, package-manager
Unlimited public packages

Dart packages
Pub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter, AngularDart, and general Dart programs.
Tag: flutter, dart, package-manager

Submit a module vlang Unlimited public packages