1 | [中文](https://pnpm.io/zh/) | [Español](https://pnpm.io/es/)
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3 | ![](https://i.imgur.com/qlW1eEG.png)
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4 |
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5 | Fast, disk space efficient package manager:
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6 |
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7 | * **Fast.** Up to 2x faster than the alternatives (see [benchmark](#benchmark)).
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8 | * **Efficient.** Files inside `node_modules` are linked from a single content-addressable storage.
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9 | * **[Great for monorepos](https://pnpm.io/workspaces).**
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10 | * **Strict.** A package can access only dependencies that are specified in its `package.json`.
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11 | * **Deterministic.** Has a lockfile called `pnpm-lock.yaml`.
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12 | * **Works everywhere.** Supports Windows, Linux, and macOS.
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13 | * **Battle-tested.** Used in production by teams of [all sizes](https://pnpm.io/users) since 2016.
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14 |
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15 | To quote the [Rush](https://rushjs.io/) team:
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16 |
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17 | > 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.
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18 |
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19 | [![npm version](https://img.shields.io/npm/v/pnpm.svg)](https://www.npmjs.com/package/pnpm)
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20 | [![Join the chat at Discord](https://img.shields.io/discord/731599538665553971.svg)](https://r.pnpm.io/chat)
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21 | [![OpenCollective](https://opencollective.com/pnpm/backers/badge.svg)](#backers)
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22 | [![OpenCollective](https://opencollective.com/pnpm/sponsors/badge.svg)](#sponsors)
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23 | [![Twitter Follow](https://img.shields.io/twitter/follow/pnpmjs.svg?style=social&label=Follow)](https://twitter.com/pnpmjs)
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24 |
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25 | ## Background
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26 |
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27 | pnpm uses a content-addressable filesystem to store all files from all module directories on a disk.
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28 | When using npm or Yarn, if you have 100 projects using lodash, you will have 100 copies of lodash on disk.
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29 | With pnpm, lodash will be stored in a content-addressable storage, so:
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30 |
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31 | 1. If you depend on different versions of lodash, only the files that differ are added to the store.
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32 | If lodash has 100 files, and a new version has a change only in one of those files,
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33 | `pnpm update` will only add 1 new file to the storage.
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34 | 1. All the files are saved in a single place on the disk. When packages are installed, their files are linked
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35 | from that single place consuming no additional disk space. Linking is performed using either hard-links or reflinks (copy-on-write).
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36 |
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37 | As a result, you save gigabytes of space on your disk and you have a lot faster installations!
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38 | If you'd like more details about the unique `node_modules` structure that pnpm creates and
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39 | 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).
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40 |
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41 | ## Installation
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42 |
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43 | On macOS, Linux, or Windows Subsystem for Linux:
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44 |
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45 | ```
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46 | curl -f https://get.pnpm.io/v6.js | node - add --global pnpm
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47 | ```
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48 |
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49 | On Windows (using PowerShell):
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50 |
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51 | ```
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52 | (Invoke-WebRequest 'https://get.pnpm.io/v6.js' -UseBasicParsing).Content | node - add --global pnpm
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53 | ```
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54 |
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55 | Using npm:
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56 |
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57 | ```
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58 | npx pnpm add -g pnpm
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59 | ```
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60 |
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61 | For other installation options [visit our website](https://pnpm.io/installation).
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62 |
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63 | ## Usage
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64 |
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65 | Just use pnpm in place of npm/Yarn. E.g., install dependencies via:
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66 |
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67 | ```
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68 | pnpm install
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69 | ```
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70 |
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71 | Also, pnpx instead of npx:
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72 |
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73 | ```
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74 | pnpx create-react-app my-cool-new-app
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75 | ```
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76 |
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77 | For more advanced usage, read [pnpm CLI](https://pnpm.io/pnpm-cli) on our website, or run `pnpm help`.
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78 |
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79 | ## Benchmark
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80 |
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81 | pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks [here](https://r.pnpm.io/benchmarks).
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82 |
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83 | Benchmarks on an app with lots of dependencies:
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84 |
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85 | ![](https://pnpm.io/img/benchmarks/alotta-files.svg)
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86 |
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87 | ## Support
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88 |
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89 | - [Frequently Asked Questions](https://pnpm.io/faq)
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90 | - [Stack Overflow](https://stackoverflow.com/questions/tagged/pnpm)
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91 | - [Chat](https://r.pnpm.io/chat)
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92 | - [Twitter](https://twitter.com/pnpmjs)
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93 | - [Awesome list](https://github.com/pnpm/awesome-pnpm)
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94 |
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95 | ## Contributors
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96 |
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97 | This project exists thanks to all the people who contribute. [[Contribute](../../blob/main/CONTRIBUTING.md)].
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98 | <a href="../../graphs/contributors"><img src="https://opencollective.com/pnpm/contributors.svg?width=890&button=false" /></a>
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99 |
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100 | ### Backers
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101 |
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102 | Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/pnpm#backer)]
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103 |
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104 | <a href="https://opencollective.com/pnpm#backers" target="_blank"><img src="https://opencollective.com/pnpm/backers.svg?width=890"></a>
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105 |
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106 | ### Sponsors
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107 |
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108 | Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/pnpm#sponsor)]
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109 |
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110 | <a href="https://opencollective.com/pnpm/sponsor/0/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/0/avatar.svg"></a>
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111 | <a href="https://opencollective.com/pnpm/sponsor/1/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/1/avatar.svg"></a>
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112 | <a href="https://opencollective.com/pnpm/sponsor/2/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/2/avatar.svg"></a>
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113 | <a href="https://opencollective.com/pnpm/sponsor/3/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/3/avatar.svg"></a>
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114 | <a href="https://opencollective.com/pnpm/sponsor/4/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/4/avatar.svg"></a>
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115 | <a href="https://opencollective.com/pnpm/sponsor/5/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/5/avatar.svg"></a>
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116 | <a href="https://opencollective.com/pnpm/sponsor/6/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/6/avatar.svg"></a>
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117 | <a href="https://opencollective.com/pnpm/sponsor/7/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/7/avatar.svg"></a>
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118 | <a href="https://opencollective.com/pnpm/sponsor/8/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/8/avatar.svg"></a>
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119 | <a href="https://opencollective.com/pnpm/sponsor/9/website" target="_blank"><img src="https://opencollective.com/pnpm/sponsor/9/avatar.svg"></a>
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120 |
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121 | ## License
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122 |
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123 | [MIT](https://github.com/pnpm/pnpm/blob/main/LICENSE)
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124 |
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125 | ***
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126 |
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127 | Like this project? Let people know with a [tweet](https://bit.ly/tweet-pnpm).
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