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Benchmarks of JavaScript Package Managers

Last benchmarked at: Sep 7, 2025, 3:01 AM (daily updated).

This benchmark compares the performance of npm, pnpm, Yarn Classic, and Yarn PnP (check Yarn's benchmarks for any other Yarn modes that are not included here).

Here's a quick explanation of how these tests could apply to the real world:

  • clean install: How long it takes to run a totally fresh install: no lockfile present, no packages in the cache, no node_modules folder.
  • with cache, with lockfile, with node_modules: After the first install is done, the install command is run again.
  • with cache, with lockfile: When a repo is fetched by a developer and installation is first run.
  • with cache: Same as the one above, but the package manager doesn't have a lockfile to work from.
  • with lockfile: When an installation runs on a CI server.
  • with cache, with node_modules: The lockfile is deleted and the install command is run again.
  • with node_modules, with lockfile: The package cache is deleted and the install command is run again.
  • with node_modules: The package cache and the lockfile is deleted and the install command is run again.
  • update: Updating your dependencies by changing the version in the package.json and running the install command again.

Lots of Files

The app's package.json here

actioncachelockfilenode_modulesnpmpnpmYarnYarn PnP
install39.3s9.9s7.1s3.5s
install1.3s747ms5.1sn/a
install8s2.4s5.3s1.3s
install12.6s6.2s7.2s3s
install11.1s5.5s5.3s1.3s
install1.6s2.1s7sn/a
install1.3s740ms5.1sn/a
install1.6s5.9s7sn/a
updaten/an/an/a7.3s3.4s5.7s3.1s
Graph of the alotta-files results