Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs.

ClojureScript compiler and core runtime library.

Wro4j Extensions

Javascript AMD Aggregator Service

Gradle JS Plugin

Aloha Editor

Javascript AMD Aggregator Core

This projects just wrapped the google closure-compile with an OSGi manifest.

ClojureScript compiler and core runtime library

Biki Editor

This plugin compiles/optimizes your javascript resources with the Google Closure Compiler. It provides three compilation levels.