TMSU - TMSU is a tool for tagging your files.
Hydrus - A personal booru-style media tagger that can import files and tags from your hard drive and popular...
TAGXFS - Tagxfs is a semantic file system. It extends the user space file system to a tag based hierarchy.
Danbooru - Danbooru is an advanced, tag-based image board system that is based on Ruby On Rails.
Szurubooru - Image board engine, Danbooru-style. Contribute to rr-/szurubooru development by creating an account on GitHub.
File Name Tag Explorer - File Name Tag Explorer lets you: Organize your files with tags.