Angus - A new app build tool which brings a declarative approach to configurations (no more...
Gulp.js - Automate and enhance your workflow
Assemble - The static site generator for Node.js, Grunt.js and Yeoman
Grunt - The Grunt ecosystem is huge and it's growing every day.
Cookiecutter - A command-line utility that creates projects from cookiecutters (project templates), e.g.
Webpack - Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.