BundleStatsWebpackPlugin

In-depth bundle analyzer for webpack (and Rspack) that generates detailed HTML reports on bundle size, assets, modules, and packages, with side-by-side comparison support. Current stable version v4.22.1, actively maintained with frequent releases. Supports webpack 4 & 5, Rspack 0.x & 1.x, and also has plugins for Vite, Rollup, and Rolldown. Key differentiators: it provides not only size analysis but also duplicate package detection, cache invalidation metrics, and historical comparison via RelativeCI. Ships TypeScript types.