When comparing Npackd vs just-install, the Slant community recommends Npackd for most people. In the question“What are the best Windows package managers?” Npackd is ranked 12th while just-install is ranked 13th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Offers both GUI and command-line interface
Pro Free and open-source
No paid edition
Pro Can work with SW installed outside of Npackd
Pro Contains no adware or additional unrelated software
Pro Open source, free and libre
Pro Works within Windows guidelines
The programs are listed in Control Panel and can be uninstalled using standard Windows procedure. Downloads from original source, doesn't repackage. It just automates the install process, skipping prompts and dialogs.
Pro Can install bundles, without needing command line parameters
Like Ninite, you can create a custom .exe installer which automatically downloads and installs a package selection -- no command line switches needed. https://just-install.it/customizer.html
Cons
Con The documentation is not very extensive
Con Smaller selection of packages
While currently offering over 1000 packages with the most common software already available, it does not cover as much as Chocolatey.
Con Limited package selection
Since project is open source there is way to add new packages, but you'll have to figure out how to configure new package and submit pull request. There's no army of volunteers responding to requests.