Most Docker images are 3–10x larger than they need to be. DockerDiet is a free static analysis tool that takes your Dockerfile as input and gives you back: → An estimated image size breakdown by layer → A list of anti-patterns detected (with severity: critical / high / medium / low) → An automatically rewritten, optimized Dockerfile → Infrastructure cost implications (storage cost, pull time, CI/CD speed) → Side-by-side diff of original vs optimized