bundle-analyzer

Analyze your bundle size to pinpoint heavy dependencies causing bloat, then apply optimizations like selective imports, tree shaking, and dynamic module loading to reduce the JavaScript payload.

Tree shaking is an optimization technique that eliminates unused code from your dependencies. It helps reduce bundle size by ensuring only the necessary JavaScript modules are included in the final build payload.

Track bundle size regressions by analyzing build outputs to flag chunk size increases during development cycles, identifying new dependencies or code changes that bloat the JavaScript payload.

The bundle analyzer targets webpack-based builds to identify heavy dependencies and recommend optimizations. While use cases highlight Next.js, the core analysis applies to any JavaScript payload experiencing size increases.

Run a bundle analysis report on your largest chunks to identify heavy dependencies causing bloat. This flags specific libraries so you can replace them, use selective imports, or implement dynamic module loading.

Use dynamic imports when bundle analysis identifies heavy dependencies. Dynamic module loading splits large libraries into separate chunks, reducing the initial JavaScript payload and improving load times.