https://github.com/pnpm/pnpm
Fast, disk space efficient package manager
https://github.com/pnpm/pnpm
dependency-manager install javascript modules node nodejs npm package-manager
Last synced: 7 days ago
JSON representation
Fast, disk space efficient package manager
- Host: GitHub
- URL: https://github.com/pnpm/pnpm
- Owner: pnpm
- License: mit
- Created: 2016-01-28T07:40:43.000Z (about 9 years ago)
- Default Branch: main
- Last Pushed: 2025-04-04T16:10:03.000Z (10 days ago)
- Last Synced: 2025-04-04T21:40:17.624Z (10 days ago)
- Topics: dependency-manager, install, javascript, modules, node, nodejs, npm, package-manager
- Language: TypeScript
- Homepage: https://pnpm.io
- Size: 174 MB
- Stars: 31,224
- Watchers: 143
- Forks: 1,083
- Open Issues: 1,821
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Codeowners: .github/CODEOWNERS
- Security: SECURITY.md
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README
[简体中文](https://pnpm.io/zh/) |
[日本語](https://pnpm.io/ja/) |
[한국어](https://pnpm.io/ko/) |
[Italiano](https://pnpm.io/it/) |
[Português Brasileiro](https://pnpm.io/pt/)
Fast, disk space efficient package manager:
* **Fast.** Up to 2x faster than the alternatives (see [benchmark](#benchmark)).
* **Efficient.** Files inside `node_modules` are linked from a single content-addressable storage.
* **[Great for monorepos](https://pnpm.io/workspaces).**
* **Strict.** A package can access only dependencies that are specified in its `package.json`.
* **Deterministic.** Has a lockfile called `pnpm-lock.yaml`.
* **Works as a Node.js version manager.** See [pnpm env use](https://pnpm.io/cli/env).
* **Works everywhere.** Supports Windows, Linux, and macOS.
* **Battle-tested.** Used in production by teams of [all sizes](https://pnpm.io/users) since 2016.
* [See the full feature comparison with npm and Yarn](https://pnpm.io/feature-comparison).
To quote the [Rush](https://rushjs.io/) team:
> Microsoft uses pnpm in Rush repos with hundreds of projects and hundreds of PRs per day, and we’ve found it to be very fast and reliable.
[](https://github.com/pnpm/pnpm/releases/latest)
[](https://r.pnpm.io/chat)
[](https://opencollective.com/pnpm)
[](https://opencollective.com/pnpm)
[](https://x.com/intent/follow?screen_name=pnpmjs®ion=follow_link)
[](https://stand-with-ukraine.pp.ua)
## Platinum Sponsors
## Gold Sponsors
## Silver Sponsors
Support this project by [becoming a sponsor](https://opencollective.com/pnpm#sponsor).
## Background
pnpm uses a content-addressable filesystem to store all files from all module directories on a disk.
When using npm, 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:
1. 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 update` will only add 1 new file to the storage.
1. All the files are saved in a single place on the disk. When packages are installed, their files are linked
from that single place consuming no additional disk space. Linking is performed using either hard-links or reflinks (copy-on-write).
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](https://pnpm.io/blog/2020/05/27/flat-node-modules-is-not-the-only-way).
💖 Like this project? Let people know with a [tweet](https://r.pnpm.io/tweet)
## Getting Started
- [Installation](https://pnpm.io/installation)
- [Usage](https://pnpm.io/pnpm-cli)
- [Frequently Asked Questions](https://pnpm.io/faq)
- [Chat](https://r.pnpm.io/chat)
- [X](https://x.com/pnpmjs)
- [Bluesky](https://bsky.app/profile/pnpm.io)
## Benchmark
pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks [here](https://r.pnpm.io/benchmarks).
Benchmarks on an app with lots of dependencies:
## License
[MIT](https://github.com/pnpm/pnpm/blob/main/LICENSE)