Hydrus - A personal booru-style media tagger that can import files and tags from your hard drive and popular...
Danbooru - Danbooru is an advanced, tag-based image board system that is based on Ruby On Rails.
Konachan - Imageboard dedicated to anime, manga, and Japanese games wallpapers / backgrounds.
TMSU - TMSU is a tool for tagging your files.
Szurubooru - Image board engine, Danbooru-style. Contribute to rr-/szurubooru development by creating an account on GitHub.
dhtfs - Makes the benefits of tagging available through a traditional filesystem framework like VFS.