You type an image reference — e.g. nginx:1.25.3 — and click Pull & Download.
2
This server runs docker pull nginx:1.25.3 and streams the pull log to your browser in real time via Server-Sent Events.
3
Once the pull completes, the server pipes docker save nginx:1.25.3 | gzip directly to your browser as an HTTP download — no temp file on disk.
4
After your download finishes, the image is removed from the server with docker rmi -f to reclaim disk space.
5
You can load the archive on any machine with docker load < nginx-1.25.3.tar.gz, no registry access required.
Note: Downloads are streamed directly — the browser receives bytes as docker save produces them. Large images may take several minutes. Do not close the tab during download.