CMake - CMake is an open-source, cross-platform family of tools designed to build, test and package software.
stealjs - Futuristic JavaScript dependency loader and builder. Speeds up application load times. Works with ES6, CommonJS, AMD, CSS, LESS and more. Simplifies modular workflows.
SCons - SCons is an Open Source software construction tool—that is, a next-generation build tool.
RequireJS - RequireJS is a JavaScript file and module loader.
Ninja Build - Ninja is a small build system with a focus on speed.
JSPM - Front End Package Manager, Frontend Development, and Javascript