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.

Maven plugin for compressing JS files at build time

JVM Asset Pipeline library for serving static web assets, bundling, minifying, and extensibility for transpiling.

Apache Flex FlexJS: Compiler: Compiler JX

Nunaliit2 JavaScript

Apache Royale: Compiler: Debugger

Apache Flex FlexJS: Compiler: Debugger

Utilities for working with liberator-based endpoints

Seedy (CD) is a maven plugin for automating continuous deployment to Amazon Web Services