pnpm vs npm vs yarn vs bower vs jspm
JavaScript Package Managers Comparison
1 Year
pnpmnpmyarnbowerjspmSimilar Packages:
What's JavaScript Package Managers?

JavaScript package managers are essential tools in web development that help manage libraries and dependencies in projects. They enable developers to easily install, update, and manage packages, ensuring that the right versions are used and that conflicts are minimized. Each package manager has its own unique features and advantages, catering to different workflows and project requirements. Understanding these differences is crucial for selecting the right tool for your development needs.

Package Weekly Downloads Trend
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Package
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pnpm21,151,97630,92418.7 MB1,7896 days agoMIT
npm6,294,7538,71311.8 MB656a month agoArtistic-2.0
yarn5,836,75941,5085.34 MB2,067a year agoBSD-2-Clause
bower346,361-20 MB--MIT
jspm8,036-1.02 MB-25 days agoApache-2.0
Feature Comparison: pnpm vs npm vs yarn vs bower vs jspm

Installation Speed

  • pnpm:

    pnpm is known for its impressive installation speed due to its unique symlink strategy, which avoids duplication of packages and speeds up the installation process.

  • npm:

    npm has improved its installation speed significantly with the introduction of npm ci and caching strategies, but it can still be slower than some alternatives for large projects.

  • yarn:

    Yarn is designed for speed, utilizing parallel installations and offline caching to significantly reduce installation times compared to npm.

  • bower:

    Bower's installation speed is generally fast for front-end libraries, but it lacks advanced caching mechanisms, making it slower compared to modern alternatives.

  • jspm:

    JSPM offers fast installations by leveraging the SystemJS loader and caching, allowing for quick retrieval of modules from the CDN or local cache.

Dependency Management

  • pnpm:

    pnpm's unique approach to dependency management ensures that packages are stored in a single location on disk, reducing duplication and improving efficiency, while still allowing for nested dependencies.

  • npm:

    npm provides a robust dependency management system with a hierarchical structure, allowing for nested dependencies and versioning, making it suitable for complex applications.

  • yarn:

    Yarn offers a deterministic dependency management system with a lockfile that ensures consistent installs across environments, preventing version conflicts.

  • bower:

    Bower manages front-end dependencies with a flat structure, which can lead to version conflicts if not handled properly. It does not support nested dependencies well.

  • jspm:

    JSPM excels in managing both npm and GitHub packages, allowing for a flexible dependency structure that supports ES module loading, making it ideal for modern web applications.

Community and Ecosystem

  • pnpm:

    pnpm has a rapidly growing community and is gaining popularity for its efficiency and performance benefits, especially in large projects.

  • npm:

    npm has the largest community and ecosystem, with millions of packages available, making it the go-to choice for most JavaScript projects.

  • yarn:

    Yarn has a strong community and is widely used in the JavaScript ecosystem, especially among React developers, providing a rich set of plugins and integrations.

  • bower:

    Bower has a smaller community and is now deprecated, meaning it is not actively maintained or recommended for new projects.

  • jspm:

    JSPM has a growing community, but it is not as large as npm or Yarn. It is more focused on modern JavaScript development and ES modules.

Configuration and Customization

  • pnpm:

    pnpm offers configuration options that allow developers to customize the installation process and optimize performance, making it suitable for advanced users.

  • npm:

    npm provides a flexible configuration system through package.json, allowing for extensive customization of scripts, dependencies, and project settings.

  • yarn:

    Yarn also provides a flexible configuration system, allowing developers to customize scripts and settings, and it supports workspaces for managing monorepos.

  • bower:

    Bower requires minimal configuration, making it easy to set up for simple projects, but it lacks advanced customization options.

  • jspm:

    JSPM offers extensive configuration options for module loading and can be customized to fit various project needs, but it may require a steeper learning curve.

Offline Support

  • pnpm:

    pnpm offers excellent offline support due to its symlink strategy, allowing for quick installations without needing to re-download packages once they are cached.

  • npm:

    npm has improved offline support with the npm ci command and caching, allowing developers to install packages without an internet connection after the initial setup.

  • yarn:

    Yarn provides robust offline support through its caching mechanism, allowing developers to install packages without an internet connection after the first download.

  • bower:

    Bower does not provide built-in offline support, which can be a limitation for developers working in environments with limited internet access.

  • jspm:

    JSPM supports offline installations by caching modules, but it may require initial setup to work effectively offline.

How to Choose: pnpm vs npm vs yarn vs bower vs jspm
  • pnpm:

    Choose pnpm if you want a fast and efficient package manager that uses a unique symlink strategy to save disk space and improve installation speed. It is particularly useful for large projects with many dependencies and monorepos.

  • npm:

    Choose npm if you are looking for the most widely used package manager in the JavaScript ecosystem, especially for Node.js applications. It is suitable for both front-end and back-end development and provides a vast repository of packages.

  • yarn:

    Choose Yarn if you need a package manager that focuses on speed and reliability, offering features like offline caching and deterministic installs. It is a great choice for projects that require a robust dependency management system.

  • bower:

    Choose Bower if you are working on front-end projects that require managing client-side libraries and you prefer a simple, flat dependency structure. However, note that Bower is now deprecated and not recommended for new projects.

  • jspm:

    Choose JSPM if you want a modern package manager that supports ES modules and allows you to load modules directly from the browser. It is ideal for projects that require a modular architecture and need to work with both npm and GitHub packages seamlessly.

README for pnpm

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pnpm

Fast, disk space efficient package manager:

  • Fast. Up to 2x faster than the alternatives (see benchmark).
  • Efficient. Files inside node_modules are 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 as a Node.js version manager. See pnpm env use.
  • Works everywhere. Supports Windows, Linux, and macOS.
  • Battle-tested. Used in production by teams of all sizes since 2016.
  • See the full feature comparison with npm and Yarn.

To quote the Rush 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.

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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.
  2. 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.

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Installation

For installation options visit our website.

Usage

Just use pnpm in place of npm/Yarn. E.g., install dependencies via:

pnpm install

For more advanced usage, read pnpm CLI on our website, or run pnpm help.

Benchmark

pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks here.

Benchmarks on an app with lots of dependencies:

Support

License

MIT