Webpack

Webpack is the most widely used module bundler for JavaScript applications, transforming and bundling source code, stylesheets, images, and other assets into optimized production builds. While newer tools like Vite are gaining popularity, Webpack remains the backbone of most production React, Vue, and Angular applications. Understanding Webpack's loader and plugin system enables sophisticated build optimizations including code splitting, tree shaking, lazy loading, and module federation for micro-frontends.