NPM vs Yarn vs pnpm Comparison

The Three Package Managers

npm, Yarn, and pnpm all install Node packages but differ in speed, disk usage, and features.

Comparison

Feature	npm	Yarn	pnpm
Speed	Good	Fast	Fastest
Disk usage	High	High	Low (shared)
Built-in	Yes (Node)	Install	Install
Lock file	package-lock	yarn.lock	pnpm-lock

Equivalent Commands

# Install all
npm install   |  yarn   |  pnpm install

# Add a package
npm i express |  yarn add express |  pnpm add express

# Run a script
npm run dev   |  yarn dev |  pnpm dev

Why pnpm is Gaining Popularity

pnpm stores one copy of each package globally and links it — saving gigabytes of disk space and installing faster.

Which Should You Use?

• npm — default, no install, fine for most.
• pnpm — best for monorepos and disk efficiency.
• Yarn — mature, good for existing projects.

FAQs

Can I switch managers?

Yes — delete node_modules and the old lock file, then install with the new one. More in our NPM section.

Are they compatible?

They all use the same npm registry, so any package works with any of them.