From Bloat to Lean: Docker Multi-Stage Builds Slash Container Sizes by 80%

Multi-stage Docker builds dramatically reduce production image sizes from 1.2GB to under 200MB, directly lowering deployment costs and accelerating cloud deployments. This technique separates build dependencies from runtime requirements, eliminating unnecessary files and strengthening security posture. As containerized applications scale globally, mastering multi-stage builds becomes essential for operational efficiency and infrastructure cost management.