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Eagle vs Hydrus Network: catalog facts
Eagle	Hydrus Network
Paid Paid software bought from the developer's site.	Free Free, with source published on GitHub.
Windows, macOS, Browser extension	Windows, macOS, Linux, Self-hosted
Handles large collections of images and design files Several ways to categorize and search assets	Tag-based search across very large collections Imports files and tags from disk and websites
Paid software with no free tier shown Windows and macOS only	Takes time to learn compared with ordinary photo libraries Interface is dense and built for power users
Downloadable app, Browser extension	Downloadable app, Self-hosted
Closed source	Closed source
License not stated	License: WTFPL
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.