The best open source alternative to Google Container Registry is Harbor. If that doesn't suit you, our users have ranked more than 10 alternatives to Google Container Registry and four of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Container Registry are 8gears Container Registry, Portus and Unregistry.
Harbor is an open source trusted cloud native registry project that stores, signs, and scans content. Harbor extends the open source Docker Distribution by adding the functionalities usually required by users such as security, identity and management.
The 8gears Container Registry is a Harbor-based container registry, offered and operated by the CNCF project's maintainer and contributors. Container image management for teams and software vendors who want to distribute containers instead. Unlimited private repositories for individuals.
Unregistry is a lightweight container image registry that stores and serves images directly from your Docker daemon's storage.
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