hydrus is a personal booru-style media tagger that can import files and tags from your hard drive and popular websites. Content can be shared with other users via user-run servers.
The hydrus network client is a desktop application written individuals with large media collections.
It organises your files into an internal database and browses them with tags instead of folders, a little like a booru on your desktop. Tags and files can be anonymously shared through custom servers that any user may run. Everything is free, nothing phones home, and the source code is included with the release.
Key Features
- Importable filetypes are:
- images – jpg, gif (including animated), png (including animated!), tiff, webp, bmp.
- video – webm, mp4, mpeg, avi, mov, mkv, flv, wmv.
- audio – mp3, flac, ogg, wma.
- misc – swf, pdf, psd, zip, rar, 7z.
- Server-client implementation.
- API that lets external tools connect to it
Website: hydrusnetwork.github.io/hydrus
Support: FAQ
Developer: Hydrus Developer
License: WTFPL

hydrus is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| Collection Managers | |
|---|---|
| HomeBox | Self-hosted inventory and organisation system |
| GCStar | Wonderfully versatile software for managing personal collections |
| Tellico | Easy to use KDE application for organizing your collections |
| hydrus | Danbooru-like image tagging and search system |
| Alexandria | Book collection manager for GNOME |
| Yamtrack | Self-hosted tracker for movies, TV shows, games, books and more |
| Data Crow | Ultimate media cataloger and media organiser |
| OpenNumismat | Coin collecting software |
| Koillection | Self-hosted collection manager |
| Katalog | Catalog and search files stored across disks and removable media |
| VVV | Catalog the content of removable volumes for off-line searching |
| tinyMediaManager | Media management tool |
| DVinyl | Self-hosted manager for organising your vinyl record collection |
| StuffKeeper | Generic catalog software |
| Ryot | Track media consumption, workouts, exercise and body measurements |
| Griffith | Movie collection manager |
Read our verdict in the software roundup.
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