regclient: Container Image Lifecycle Without a Daemon
regctl, regbot, and regsync give you tag retention policies, registry replication, and manifest surgery, no Docker daemon required.
Tag: registry
All the articles with the tag "registry".
Skopeo: Container Image Surgery Without a Daemon
Skopeo lets you copy, inspect, and sync container images between any registry without Docker. No daemon, no bloat, just clean image ops.