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Harbor vs Docker Hub: catalog facts
Harbor	Docker Hub
Free Free and open source.	Freemium Browsing and pulling public images is free; publishing requires a Docker account.
Linux, Self-hosted	Web
Built-in vulnerability scanning and content signing Role-based access control with identity integration	Default registry used by Docker tools Official, hardened and verified publisher images are labeled
Heavier to run than a plain registry Needs Docker or Kubernetes to install	Hosted service, not something you can run yourself Publishing images requires an account
Self-hosted	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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