Fast, disk space efficient package manager
Features:
- Fast. As fast as npm and Yarn.
- Efficient. Files inside
node_modulesare linked from a single content-addressable storage. - Great for monorepos.
- Strict. A package can access only dependencies that are specified in its
package.json. - Deterministic. Has a lockfile called
pnpm-lock.yaml. - Works everywhere. Works on Windows, Linux, and OS X.
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pnpm uses a content-addressable filesystem to store all files from all module directories on a disk. When using npm or Yarn, if you have 100 projects using lodash, you will have 100 copies of lodash on disk. With pnpm, lodash will be stored in a content-addressable storage, so:
- If you depend on different versions of lodash, only the files that differ are added to the store.
If lodash has 100 files, and a new version has a change only in one of those files,
pnpm updatewill only add 1 new file to the storage. - All the files are saved in a single place on the disk. When packages are installed, their files are hard-linked from that single place consuming no additional disk space.
As a result, you save gigabytes of space on your disk and you have a lot faster installations!
If you'd like more details about the unique node_modules structure that pnpm creates and
why it works fine with the Node.js ecosystem, read this small article: Flat node_modules is not the only way.
Using a standalone script:
curl -L https://raw.githubusercontent.com/pnpm/self-installer/master/install.js | node
On Windows (PowerShell):
(Invoke-WebRequest 'https://raw.githubusercontent.com/pnpm/self-installer/master/install.js').Content | nodeVia npx:
npx pnpm add -g pnpm
Once you first installed pnpm, you can upgrade it using pnpm:
pnpm add -g pnpm
Do you wanna use pnpm on CI servers? See: Continuous Integration.
Just use pnpm in place of npm. For instance, to install run:
pnpm install
For more advanced usage, read pnpm CLI on our website.
For using the programmatic API, use pnpm's engine: supi.
npm has a great package runner called npx.
pnpm offers the same tool via the pnpx command. The only difference is that pnpx uses pnpm for installing packages.
The following command installs a temporary create-react-app and calls it, without polluting global installs or requiring more than one step!
pnpx create-react-app my-cool-new-app
pnpm is as fast as npm and Yarn. See all benchmarks here.
Benchmarks on a React app:
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