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Alex Spinov
Alex Spinov

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Pnpm Has a Free Package Manager — 2x Faster Than npm, 3x Less Disk Space

Pnpm is a fast, disk-efficient package manager — uses hard links to save disk space and speed up installs.

What You Get for Free

  • 2x faster — than npm for installing dependencies
  • 3x less disk — shared store, hard links instead of copies
  • Strict by default — prevents phantom dependencies
  • Workspaces — first-class monorepo support
  • Side-by-side versions — different versions of same package coexist
  • Lockfile — deterministic installs across machines
  • npm compatible — drop-in replacement for npm
  • Patching — patch packages without forking

Quick Start

npm install -g pnpm
pnpm install  # drop-in replacement for npm install
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# Monorepo workspace
# pnpm-workspace.yaml
packages:
  - 'packages/*'
  - 'apps/*'

pnpm --filter @myorg/web dev  # run dev in specific package
pnpm -r build  # build all packages
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Why Developers Switch from npm/yarn

npm copies every package into each project's node_modules:

  • Shared store — 100 projects share one copy of React
  • Strict mode — catches undeclared dependencies
  • Faster CI — less to download, less to extract
  • Better monorepopnpm -r and --filter just work

A monorepo with 15 packages used 12GB of node_modules with npm. After pnpm: 4GB total (shared store), pnpm install runs in 8 seconds vs npm's 45 seconds.

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