Software Alternatives, Accelerators & Startups

SystemJS VS JSPM

Compare SystemJS VS JSPM and see what are their differences

SystemJS logo SystemJS

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

JSPM logo JSPM

Front End Package Manager, Frontend Development, and Javascript
  • SystemJS Landing page
    Landing page //
    2022-11-06
  • JSPM Landing page
    Landing page //
    2023-04-07

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.

JSPM features and specs

  • Modern JavaScript Support
    JSPM provides support for ES modules and modern JavaScript features, allowing developers to use the latest standards in their projects.
  • Dependency Management
    JSPM offers efficient dependency management by automatically resolving and managing package versions, which reduces conflicts and simplifies updates.
  • CDN Integration
    JSPM integrates with CDN services to enable direct module imports from URLs, reducing setup complexity and enhancing performance by leveraging distributed content delivery networks.
  • Ecosystem Compatibility
    JSPM is compatible with npm packages, allowing developers to access a wide range of libraries and tools available in the npm ecosystem.
  • Pluggable Build System
    JSPM includes a pluggable build system that can be customized and extended to suit different workflow requirements and optimizations.

Possible disadvantages of JSPM

  • Learning Curve
    For developers new to JSPM, there might be a steeper learning curve due to its unique features and configurations compared to more traditional package managers.
  • Limited Community Support
    JSPM may have a smaller community compared to established tools like Webpack or Parcel, potentially leading to fewer resources or community-driven plugins.
  • Complexity for Small Projects
    For small or simple projects, JSPM might introduce unnecessary complexity compared to lighter alternatives, which could be more straightforward for basic use cases.
  • Performance Overhead
    Depending on the project setup and usage, there might be some performance overhead during the initial setup or builds, particularly for very large projects.
  • Dependency on External Services
    Relying heavily on external CDNs and services can lead to potential issues if those services experience downtime or changes in policy.

SystemJS videos

Javascript Tutorial - SystemJS intro

More videos:

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

JSPM videos

JSPM Engineering College Pune Honest Review | Cut-OFF | Placement | Fees | Campus | Student Reviews

More videos:

  • Review - JSPM PUNE | COLLEGE FEE| HOSTEL FEE | PLACEMENT | RANKING | CUT OFF | CAMPUS | JSPM COLLEGE REVIEW
  • Review - JSPM BSIOTR FE Computer students review

Category Popularity

0-100% (relative to SystemJS and JSPM)
Web Application Bundler
42 42%
58% 58
JS Build Tools
33 33%
67% 67
Front End Package Manager
Module Bundler
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, SystemJS should be more popular than JSPM. It has been mentiond 4 times since March 2021. 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

JSPM mentions (2)

  • Big Changes Ahead for Deno
    > We've been working on some updates that will allow Deno to easily import npm packages and make the vast majority of npm packages work in Deno within the next three months. This is really huge and will be a huge boost to the Deno ecosystem. On the other hand, I quite enjoyed that it wasn't jacked into NPM. There were reasonable alternatives like https://jspm.org/. This is a big swing at Node and I'll be watching... - Source: Hacker News / over 2 years ago
  • 5 More Things I Learned Building Snowpack to 20,000 Stars
    But I really want to make it clear that I'm so incredibly proud of this project and the people who have contributed to it. Snowpack meaningfully pushed the entire web development industry forward, and that's pretty cool. Even if you never use Snowpack directly, the work that we pioneered around npm package handling for ESM is already being built on and improved on across the entire web tooling landscape in... - Source: dev.to / over 3 years ago

What are some alternatives?

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

RequireJS - RequireJS is a JavaScript file and module loader.

Ender - Frontend Development

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…

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

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.

npm - npm is a package manager for Node.