Danbooru vs Hydrus Network
A side-by-side comparison of two self-hosted photo management options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Danbooru | Hydrus Network |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 68 · Good | 88 · Excellent |
| Category | Photo Management | Photo Management |
| License | MIT | WTFPL |
| Language | Ruby | Python |
| Setup difficulty | Hard | Hard |
| Min. RAM | 2,048 MB | 1,024 MB |
| Deployment | docker, source | bare-metal, binary, source |
| GitHub stars | ★ 2,816 | ★ 3,211 |
| First released | 2005 | 2011 |
| Replaces | Pinterest, Eagle | Google Photos, Eagle |
What are Danbooru and Hydrus Network?
Danbooru
Danbooru is the open-source software behind the well-known tag-based image board of the same name. It can be self-hosted to run a private, taggable image gallery with advanced search, pools, and a moderation system.
- Tag-based image board
- Advanced search syntax
- Pools and favorites
- Multi-user moderation
Hydrus Network
Hydrus Network is a personal media management application that lets you import images and files, tag them, and search a private collection with a powerful tag system. It includes a client-server architecture so the database can be self-hosted and accessed remotely.
- Powerful tag-based search
- Client-server architecture
- Local-first media database
- Duplicate detection
Danbooru vs Hydrus Network: key differences
Danbooru is written in Ruby, while Hydrus Network is built with Python. Licensing differs — MIT for Danbooru versus WTFPL for Hydrus Network. Hydrus Network is the lighter option, starting around 1,024 MB of RAM against 2,048 MB for Danbooru. Danbooru is the more established project (first released 2005), while Hydrus Network arrived in 2011. Danbooru lists first-class Docker deployment; Hydrus Network does not.
Why pick each one
Choose Danbooru if…
- Powerful tagging system
- Mature codebase
Watch out for
- Heavy resource needs
- Complex to deploy
Choose Hydrus Network if…
- Extremely powerful tagging
- Handles huge collections
Watch out for
- Steep learning curve
- Complex interface
Frequently asked questions
Is Danbooru or Hydrus Network better?
Neither is universally better. Hydrus Network has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Danbooru and Hydrus Network free and open-source?
Yes. Danbooru is licensed under MIT and Hydrus Network under WTFPL. Both can be self-hosted at no software cost.
Can I run Danbooru and Hydrus Network with Docker?
Danbooru: yes. Hydrus Network: check the project docs for container support.
Which is lighter on resources, Danbooru or Hydrus Network?
Hydrus Network has the smaller minimum footprint at 1,024 MB of RAM, compared to about 2,048 MB for Danbooru. Real-world usage depends on library size, user count, and enabled features.