@next/bundle-analyzer
Advanced tools
The @next/bundle-analyzer package is a tool designed for Next.js applications that allows developers to visualize the size of webpack output files with an interactive zoomable treemap. It helps in identifying which components or libraries are contributing most to the bundle size, making it easier to optimize the application's performance by reducing unnecessary code.
Analyzing the bundle size
This code snippet demonstrates how to integrate @next/bundle-analyzer into a Next.js project. By wrapping the Next.js configuration with the withBundleAnalyzer function and setting the 'enabled' option based on an environment variable, developers can conditionally run the bundle analysis. When ANALYZE is set to 'true', the bundle analyzer will generate a report showing the size of the webpack output files.
const withBundleAnalyzer = require('@next/bundle-analyzer')({
enabled: process.env.ANALYZE === 'true'
});
module.exports = withBundleAnalyzer({});Similar to @next/bundle-analyzer, webpack-bundle-analyzer is a tool that provides a detailed visualization of the contents of webpack bundles. It works with any webpack configuration, making it more versatile than @next/bundle-analyzer, which is specifically tailored for Next.js projects. Both tools use interactive treemaps for visualizing bundle sizes, but webpack-bundle-analyzer can be used in a wider range of projects.
Source-map-explorer analyzes JavaScript bundles using the source maps. This allows developers to understand where code bloat is coming from. Unlike @next/bundle-analyzer, which is designed for Next.js applications, source-map-explorer can be used with any JavaScript project that generates source maps. It provides a different visualization approach, using a treemap or a sunburst chart, but serves a similar purpose of helping to optimize bundle size.
FAQs
Use `webpack-bundle-analyzer` in your Next.js project
We found that @next/bundle-analyzer demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
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