@fd-fastest/analyzer-next

Advanced Next.js bundle analyzer used by the FD-Fastest CLI.

Features

• Route-level bundle sizing with gzip measurements.
• Module breakdown sourced from emitted source maps.
• Duplicate module detection across shared bundles.
• Dependency graph generation for quick visualization.
• Bundle composition summary highlighting framework, vendor, and app code.
• Turbopack manifest support for projects using Next.js' new bundler.

Usage

import { analyzeNextBuild } from '@fd-fastest/analyzer-next';
import { createLogger } from '@fd-fastest/logger';

const logger = createLogger({ name: 'analyzer-example' });

const results = await analyzeNextBuild('.next', {
  advanced: true,
  detectDuplicates: true,
  generateGraph: true,
  analyzeComposition: true,
  turbopackBundleAnalysis: true,
});

logger.info('Route analysis', {
  route: results[0]?.path,
  modules: results[0]?.modules,
});

All advanced capabilities are opt-in and require source maps to be present in the Next.js build output. Turbopack support is on by default and falls back to webpack manifests when .next/turbopack is absent; set turbopackBundleAnalysis: false to disable the automatic detection.