Hydrus Network

Hydrus Network

Tag-based manager for very large media collections

Description

Past a few tens of thousands of files, folders stop working. One image is reference material, and by a particular artist, and has a palette you liked — no single folder is right, so you end up never finding it again.

Hydrus Network drops folders entirely. Files go into a database and are found only by tags, as many per file as you like, with searches written as "A and B and not C", OR groups and wildcards. It keeps its own copy of every file, so you can reorganise the originals freely. Images are only the start: video, audio, PDF and PSD are supported, and you can subscribe to a search on a site so new matches arrive on their own.

Features



Tags instead of folders: No directory tree — any number of tags per file, combined with AND, OR, NOT and wildcards.

Its own file store: Imported files are stored and deduplicated by hydrus, so the original folders can be reorganised without breaking anything.

Subscriptions and downloaders: Subscribe to a search term on a site and it fetches new matches on a schedule, importing the site tags too.

Duplicate finder: Perceptual hashing pairs up different sizes and re-encodes of the same image for you to confirm and merge.

Local first, sharing optional: Everything lives on your machine and the client never phones home; tag sharing through a public repository is opt-in.