bundle analyzer

Know your npm footprint

Find the minified + gzipped size of npm packages before adding it to your project.

A fast, open alternative to bundlephobia and packagephobia.

About bundleinfo

bundleinfo is a free, open npm bundle size analyzer — an alternative to bundlephobia and packagephobia. Find the install size, minified size, gzipped size, dependency tree, and per-export breakdown for any npm package before you add it to your project.

What you get

  • Install size — the on-disk footprint with all transitive dependencies (the same number packagephobia reports).
  • Minified size and gzip size — the bytes your users actually download (the bundlephobia number).
  • Per-export breakdown — for ESM packages, see which named exports are pulling weight.
  • Dependency tree — direct, peer, and optional deps at a glance.