Webpack has solidified itself as our go-to JavaScript module bundler. With its ever-growing list of loaders, it provides a single dependency tree for all your static assets, allowing flexible manipulation of JavaScript, CSS, etc. and minimizing what needs to be sent to the browser and when. Of particular relevance is the smooth integration among AMD, CommonJS and ES6 modules and how it has enabled teams to work in ES6 and seamlessly transpile (using Babel) to earlier versions for browser compatibility. Many of our teams also value Browserify, which covers a similar space but is more focused on making Node.js modules available for client-side use.