As your app grows in complexity and accumulates more packages, your bundle can quickly become too large. This impacts your app's overall performance, especially during the initial load when the bundles need to be downloaded and parsed.
The bundle analyzer provides a detailed breakdown of your application's bundle size and composition, including the size of individual modules and their dependencies.
In this guide, we'll create a simple React application that has some performance issues. We'll then use Webpack Bundle Analyzer to analyze the application bundle and identify the areas that require optimization.