Mill

= image:website/docs/logo.svg[title=Mill Logo] Mill: A Better Build Tool for Java, Scala, & Kotlin :mill-stable-version: 1.1.5 :link-github: https://github.com/com-lihaoyi/mill :link-current-doc-site: https://mill-build.org :link-mill-moduledefs: https://github.com/com-lihaoyi/mill-moduledefs // customize appearance on GitHub :idprefix: :idseparator: - :toc: :toc-placement: preamble ifndef::env-github[] :icons: font endif::[] ifdef::env-github[] :caution-caption: :fire: :important-caption: :exclamation: :note-caption: :paperclip: :tip-caption: :bulb: :warning-caption: :warning: endif::[]

link:changelog.adoc[image:https://img.shields.io/maven-central/v/com.lihaoyi/mill-dist?label=stable-version&versionSuffix={mill-stable-version}[d]] https://central.sonatype.com/artifact/com.lihaoyi/mill-dist[image:https://img.shields.io/maven-central/v/com.lihaoyi/mill-dist?label=unstable-dev-version[Maven Central Version]]

Mill is a build tool that improves upon the tools traditionally used in the JVM ecosystem:

• https://mill-build.org/mill/comparisons/maven.html[xref:comparisons/maven.adoc][Simpler than Maven], with declarative build.mill.yaml files often 1/10th the lines of a pom.xml

• https://mill-build.org/mill/comparisons/gradle.html[xref:comparisons/gradle.adoc][Easier than Gradle], with object-oriented programmable builds Java developers can intuitively understand

• https://mill-build.org/mill/comparisons/performance.html[xref:comparisons/performance.adoc][Fastest builds on the JVM], 3-7x faster than Maven or Gradle due to aggressive caching & parallelism

Although the Java compiler is very fast and the Java language is easy to learn, JVM build tools have a reputation for being sluggish, complicated, and confusing. Mill tries to offer a better alternative that gives the Java platform the developer experience it deserves.

If you want to use Mill in your own projects, check out our documentation:

• {link-current-doc-site}[Documentation]

Here is some quick example, so that you can imagine how it looks:

[source,yaml,subs="verbatim,attributes"]

extends: JavaModule mvnDeps:

• org.thymeleaf:thymeleaf:3.1.1.RELEASE
• org.slf4j:slf4j-nop:2.0.7

---

[source,console]

./mill compile # compile sources into classfiles ... compiling 1 Java source to...

./mill run --text hello

<h1>hello</h1>

./mill test ... Test foo.FooTest.testEscaping finished, ... Test foo.FooTest.testSimple finished, ... Test run foo.FooTest finished: 0 failed, 0 ignored, 2 total, ...

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• link:developer.adoc[Developer Documentation]
• link:changelog.adoc[Changelog]