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SystemJS VS npm

Compare SystemJS VS npm and see what are their differences

SystemJS logo SystemJS

Configurable module loader enabling dynamic ES module workflows in browsers and NodeJS.

npm logo npm

npm is a package manager for Node.
  • SystemJS Landing page
    Landing page //
    2022-11-06
  • npm Landing page
    Landing page //
    2023-10-03

SystemJS features and specs

  • Universal Module Loader
    SystemJS supports loading modules in various formats, such as AMD, CommonJS, and ES modules, providing versatility in deploying applications with different module specifications.
  • Dynamic Imports
    SystemJS enables dynamic loading of modules, which allows for lazy loading of parts of applications. This can lead to performance improvements by asynchronously loading only the necessary parts of your application.
  • Compatibility
    SystemJS provides compatibility across different JavaScript environments, making it a suitable choice for projects that require running code on both browsers and Node.js.
  • Extensibility
    With a plugin system that lets developers extend its capabilities, SystemJS can be customized to handle specific loading scenarios or integrate more seamlessly with different build processes or frameworks.

Possible disadvantages of SystemJS

  • Complexity
    The flexibility and extensive feature set of SystemJS can introduce complexity in configurations and require a learning curve for new developers, particularly with its extensive plugin ecosystem.
  • Performance Overhead
    Because SystemJS is a global loader, it introduces additional runtime overhead compared to using native ES modules or simpler bundling solutions, which might impact performance.
  • Reduced Relevance with ES Modules
    With the native support for ES modules in modern browsers, the need for SystemJS has decreased, as developers can often achieve the desired module functionality with built-in browser capabilities.
  • Complex Debugging
    SystemJS's dynamic loading and transformations can make debugging more challenging, as developers may struggle with source mapping or understanding how modules are resolved.

npm features and specs

  • Large Ecosystem
    npm boasts an extensive library of packages, making it easier for developers to find existing solutions for a wide array of tasks.
  • Active Community
    A vibrant and active community ensures continuous updates, support, and improvements for various packages.
  • Integration with Node.js
    Seamless integration with Node.js, which makes it the default package manager for Node.js projects.
  • Version Control
    Provides robust version control, enabling developers to specify and manage dependencies precisely.
  • Scripts
    Allows automation of tasks through custom scripts defined in the package.json file, enhancing development workflow.

Possible disadvantages of npm

  • Security Issues
    The open nature can potentially lead to dependency on unvetted or insecure packages, posing security risks.
  • Deprecation and Abandonment
    Packages may be deprecated or abandoned by their maintainers, which can disrupt projects that depend on them.
  • Complex Dependency Management
    Managing complex dependencies and resolving conflicts between them can sometimes be challenging and time-consuming.
  • Performance Overhead
    The sheer size of the node_modules directory can lead to performance overhead and large project sizes.
  • Quality Variability
    The quality of packages on npm can vary widely, with some lacking sufficient documentation or tests.

SystemJS videos

Javascript Tutorial - SystemJS intro

More videos:

  • Review - Learn Angular 2 in 21 Days: Day 2 Layout, SystemJS and Components

npm videos

Artis bus NPM Mr marcha sopir ny ramah,Review detail bus baru yang berangkat dari Payakumbuh~Jakarta

More videos:

  • Review - Review bus baru NPM,, V15 Mr marcha ft kru kece,, berangkat Payakumbuh menuju Jakarta
  • Review - Analysis of an Exploited NPM Package || Jarrod Overson

Category Popularity

0-100% (relative to SystemJS and npm)
Web Application Bundler
34 34%
66% 66
Front End Package Manager
JS Build Tools
20 20%
80% 80
Package Manager
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare SystemJS and npm

SystemJS Reviews

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npm Reviews

Repository Management Tools
There are three components to npm, they are the website, registry and the cli. The npm website is the place where developers discover packages, set up their profiles and also manage the other aspects of npm. The npm registry is the huge database that contains all the dependencies and stuff whereas the npm cli is the one that is used by most of the developers to interact with...
Source: mindmajix.com
What is Artifactory?
All packages are organized so that you can keep track of all of the dependencies and their various versions. The registry, website, and command-line interface, or CLI, are the three components of npm. The npm website is where developers can find packages, create profiles, and manage other elements of the npm project. The npm registry is an extensive database that holds all...

Social recommendations and mentions

Based on our record, npm seems to be a lot more popular than SystemJS. While we know about 64 links to npm, we've tracked only 4 mentions of SystemJS. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

SystemJS mentions (4)

  • Integrate Web Component/MFE with plain static HTML
    Using the SystemJS library, we can seamlessly integrate a web component or MFE, or even import any module at runtime. - Source: dev.to / 8 months ago
  • Rails upgrade to angular 2
    I would like to upgrade my existing Rails and Angular 1.x application. I'm following the ng-upgrade documentation and seeing that there are many dependencies including systemjs, typescript, tsd and a few other javascript libraries. Ideally there would be a angular-2 gem that would have all the dependencies but I'm not able to find that. Next I looked for gem's for each dependency but there isn't one for tsd. Source: almost 2 years ago
  • Modern SPAs without bundlers, CDNs, or Node.js
    There's also https://github.com/systemjs/systemjs if you want more of a ponyfill approach. FWIW bundlers also don't use the browser's functionality to load modules... - Source: Hacker News / about 2 years ago
  • JS Modules
    A module loader interprets and loads a module written in a certain module format at runtime. Popular examples are RequireJS and SystemJS. - Source: dev.to / almost 4 years ago

npm mentions (64)

  • A Gentle Introduction to WebAssembly in Rust (2025 Edition)
    If your WASM code is self contained in Rust, you can build it in production mode and publish it on npmjs.com right now. The wasm-pack tool creates all the TypeScript types, package.json skeleton and anything else needed for a complete package. It is recommended that you review and update your package.json file prior to publishing. - Source: dev.to / 4 months ago
  • Publishing To NPM For The First Time
    First, I signed up for an account on npmjs.com and authenticated my npm CLI with my account using a "publish" type access token generated from the website. - Source: dev.to / 5 months ago
  • How to Publish an npm Package
    Congratulations,now you package on npm you can check using go npmjs check your profile. - Source: dev.to / 9 months ago
  • A step-by-step guide on how to create and publish and npm package
    To begin, you will need to choose a name for your package. Note: Your package name must be unique. Using the exact or similar name of an existing package will return an error when publishing the package to npm. To ensure the uniquenesses of your package name, head over to npmjs.com and search for any existing packages with a similar name. If there’s an exact match or a similar name, consider changing the name... - Source: dev.to / about 1 year ago
  • Caching RESTful API requests with Heroku’s Redis Add-on
    By using Fastify, you can quickly get a Node.js application up and running to handle requests. Assuming you have Node.js installed, you’ll start by initializing a new project. We’ll use npm as our package manager. - Source: dev.to / about 1 year ago
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What are some alternatives?

When comparing SystemJS and npm, you can also consider the following products

RequireJS - RequireJS is a JavaScript file and module loader.

Yarn - Yarn is a package manager for your code.

Qoopido.demand - Browser only, promise like and extremely lightweight module loader using XHR/XDR requests and localStorage caching to dynamically load JavaScript modules, JSON, HTML, CSS, text and Bundles (single script containing multiple concatenated modules) wit…

Webpack - Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.

stealjs - Futuristic JavaScript dependency loader and builder. Speeds up application load times. Works with ES6, CommonJS, AMD, CSS, LESS and more. Simplifies modular workflows.

Brunch - Brunch builds, lints, compiles, concatenates and shrinks your HTML5 app in an ultra-simple way. No more Grunt / Gulp mess.