Webpack is a highly configurable module bundler for JavaScript development projects. It provides tree-shaking, code-splitting, minification and compression, has a Hot Module Replacement enabled dev server, a large ecosystem and wide adoption by developers.

Webpack was initially released in 2014 and quickly became the default tool of choice for developers. Though by today's standards it can feel convoluted to configure, and relatively slow especially compared to more modern competitors like Vite, Parcel and esbuild.