jwilder/docker-squash

Health v2 · maintenance only

Flags: archived

Adoption not part of the score

1976 stars · 157 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

docker-squash is a Go CLI utility that squashes multiple Docker image layers into a single layer to reduce image size, while preserving Dockerfile metadata like ENV and PORT. It is designed to be run just before pushing an image to a registry, after cleaning out build-time dependencies and unwanted files.

Use cases

• shrink a docker image before pushing to a registry
• merge many docker layers into one
• remove deleted files that still exist in lower layers
• reduce image pull and push transfer size
• clean up apt caches and build dependencies from a committed container

When to choose

• you need to flatten an already-built or committed Docker image
• you want to purge files deleted in later layers from the image history
• you want to preserve the base image layers while squashing your own layers

When to avoid

• starting a new project, since the project is explicitly no longer under development
• you can achieve smaller images with multi-stage builds or modern Docker features
• you need support for the latest Docker image formats or BuildKit

Facets

cli-tool · maturity abandoned

developer-tools compression container-runtime developer-tools cli docker-images image-squashing layer-optimization registry-push containers devops linux macos docker

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markdown · JSON · MCP: product_card(name="jwilder/docker-squash")