Alternatives to UninstallPKG

Application uninstaller

Unarchiver for .pkg and .mpkg that unpacks all the files in a package

Utility to uninstall apps and remove leftover files from old/uninstalled apps

Tool to uninstall unwanted applications and their support files

Open-source application manager and system cleaner

Uninstaller and cleaning assistant

Archive manager

Tool to remove unnecessary files and folders from disk

Finds large, unwanted files and deletes them

Unpacks archive files

Extract files and folders from package files, disk images, and archives

Utility to remove unnecessary language resources from the system