Which Ruby tag is smallest?
ruby:4.0-alpine is the smallest of the tags we measured: 92 MB unpacked and a 50 MB download on amd64, against 1,139 MB and 430 MB for ruby:4.0, 12.3× smaller. The tag with the fewest known vulnerabilities is ruby:4.0-alpine (2, 1 critical or high).
Tags at a glance
| Image | Size (compressed, amd64) | Unpacked | Base OS | Layers | Packages | Vulnerabilities | Updated |
|---|---|---|---|---|---|---|---|
| ruby:4.0 | 430 MB | 1,139 MB | Debian 13.7 (trixie) | 7 | 539 | C 17H 445M 1481L 1834? 41 | 4 days ago |
| ruby:4.0-slim | 81 MB | 179 MB | Debian 13.7 (trixie) | 5 | 166 | C 1H 43M 60L 61? 1 | 4 days ago |
| ruby:4.0-alpine | 50 MB | 92 MB | Alpine Linux 3.24.3 | 4 | 105 | C 1L 1 | 2 days ago |
Size by tag (amd64)
Compressed (download)Unpacked (on disk)
Known vulnerabilities by tag
CriticalHighMediumLowUnknown
Download size on arm64
Compressed size of the arm64 (v8) variant, for Apple Silicon, Graviton and Ampere hosts.
Comparisons
Sizes from the Docker Hub API, checked 2026-11-01. Unpacked size, files and packages measured from the amd64 image. Vulnerabilities from Trivy, database dated 2026-11-01. How we measure.