# Optimizing Docker Image Builds for Size and Build Time

DevFeed: [Optimizing Docker Image Builds for Size and Build Time](<https://devfeed.tech/articles/how-i-shrunk-my-docker-image-size-by-48x-and-cut-build-time-in-half-39411.md>)

Original publisher: [Read original article](<https://blog.pranshu-raj.in/posts/optimizing-docker-builds/>)

Author: Pranshu Raj

Published: 2025-07-31T17:25:43Z

Content type: tutorial

Language: en

Sources: [Pranshu Raj - blog on backend systems, performance and sidequests](<https://devfeed.tech/sources/pranshu-raj-blog-on-backend-systems-performance-and-sidequests.md>)

Topics: [Docker](<https://devfeed.tech/topics/docker.md>), [Docker Image](<https://devfeed.tech/topics/docker-image.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [build performance](<https://devfeed.tech/topics/build-performance.md>), [build times](<https://devfeed.tech/topics/build-times.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>)

Tags: [alpine](<https://devfeed.tech/tags/alpine.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [build-performance](<https://devfeed.tech/tags/build-performance.md>), [build-times](<https://devfeed.tech/tags/build-times.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image](<https://devfeed.tech/tags/docker-image.md>), [docker-image-size](<https://devfeed.tech/tags/docker-image-size.md>), [go](<https://devfeed.tech/tags/go.md>), [how-to](<https://devfeed.tech/tags/how-to.md>)

## AI overview

This tutorial describes optimizing a Go backend Docker image using Alpine base images and multi-stage builds. The reported changes reduced image size from 1.29 GB to 27.1 MB and build time from 43.8 seconds to 23.6 seconds.

## Source excerpt

How to optimize (and benchmark) docker image builds for build time and image size.