Tagfs is described as 'tagfs is Fuse file system to organize your files using tags' and is an app in the File Management category. There are eight alternatives to Tagfs for a variety of platforms, including Linux, Windows, Mac, BSD and Self-Hosted solutions. The best alternative is Hydrus, which is both free and Open Source. Other great apps like Tagfs are Pinry (Free, Open Source), TMSU (Free, Open Source), tagsistant (Free, Open Source) and File Name Tag Explorer (Free).
TMSU is a tool for tagging your files. It provides a simple command-line tool for applying tags and a virtual filesystem so that you can get a tag-based view of your files from within any other program.
Tagsistant is a semantic filesystem for Linux and BSD kernels. Its tag based method to organize files let's you quickly search and find it. It's able to reason on tags, it allows the creation of external plugins to enhance its behavior and its Free Software!
Dantalian is a set of Python scripts to help with file organization and tagging with hard links. In technical jargon, Dantalian can be described as a multi-dimensionally hierarchical tag-based transparent lightweight file organization system.