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Google Closure Compiler

B
B tier on JavaScript Build ToolsScore 7.1 · #6 of 27
Android app
Not listed
Free plan
Yes
Runs on
Linux, Mac, self-hosted, Windows
developers.google.com
The Google Closure Compiler homepage
Visit site Alternatives

Summary

Google Closure Compiler is ranked #6 of 27 in JavaScript build tools on Everything Xiaomi. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

Google Closure Compiler plans and pricing

All plans
Closure Compiler Free Open source Java application · Bazel library · NPM package developers.google.com · 4 Oct 2026

Compared on JavaScript build tools

Free plan
Yesdevelopers.google.com
TypeScript support
Nodevelopers.google.com
Code splitting
Yesdevelopers.google.com
Tree shaking
Yesdevelopers.google.com
Source maps
Yesdevelopers.google.com
Plugin API
Yesdevelopers.google.com

Facts

Purpose
Closure Compiler optimizes JavaScript by analyzing it, removing dead code, rewriting and minimizing what remains, and checking syntax, references, and types.developers.google.com · 4 Oct 2026
File efficiency
Google says the compiler reduces JavaScript file size and can help applications load faster while reducing bandwidth needs.developers.google.com · 4 Oct 2026
Code checking
The compiler warns about illegal JavaScript, potentially dangerous operations, and common JavaScript pitfalls.developers.google.com · 4 Oct 2026
Compilation modes
Available compilation levels include WHITESPACE_ONLY, SIMPLE, and ADVANCED; the repository README also lists BUNDLE.github.com · 4 Oct 2026
Advanced optimization
ADVANCED_OPTIMIZATIONS can improve compression through aggressive transformations and symbol renaming, and requires care to preserve program behavior.developers.google.com · 4 Oct 2026
Ways to use
The project page describes an open source command-line Java application, a library used via Bazel, and an NPM package.developers.google.com · 4 Oct 2026
Distribution
The project page directs users to download a released JAR from Maven, and the repository README also documents Maven distribution.developers.google.com · 4 Oct 2026
NPM package
The repository README states that NPM packages are built and distributed by an open source contributor, not by Google.github.com · 4 Oct 2026
Build requirements
The repository README lists Java 21 or later, NodeJS, Git, and Bazelisk as requirements to build the compiler.github.com · 4 Oct 2026
JavaScript restrictions
The repository says Closure Compiler places restrictions on input, including use of goog.module() and goog.require(), and that ES6 import/export support is not actively maintained.github.com · 4 Oct 2026
Security and compliance
The project page links to the Apache 2.0 license for code samples; it does not state a security certification or compliance standard.developers.google.com · 4 Oct 2026
Help
Google’s FAQ directs users to the Closure Compiler Discuss Group, Stack Overflow, and the FAQ itself for help.developers.google.com · 4 Oct 2026
Integrations
The repository documents a NodeJS API and use through Maven, NPM, Bazel, and command-line Java.github.com · 4 Oct 2026
Intended use
The repository says Google projects use Closure Compiler to reduce JavaScript size, check code, support localization, transpile newer JavaScript features, and split output into loadable chunks.github.com · 4 Oct 2026

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