RequireJS VS systemjs

Compare RequireJS vs systemjs and see what are their differences.

RequireJS

A file and module loader for JavaScript (by requirejs)

systemjs

Dynamic ES module loader (by systemjs)
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RequireJS systemjs
15 3
12,926 12,830
0.1% 0.5%
0.0 4.5
2 months ago 28 days ago
JavaScript JavaScript
GNU General Public License v3.0 or later MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

RequireJS

Posts with mentions or reviews of RequireJS. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-22.
  • Why hasn't JavaScript implemented namespaces yet?
    2 projects | /r/learnjavascript | 22 May 2023
    There is a library called requirejs (https://requirejs.org/) that accomplishes what I am referring to. However, this is essentially similar to the situation in PHP prior to version 5.3 - a solution implemented at the level of a separate library rather than at the language level.
  • Porting from RequireJS to ES6
    2 projects | dev.to | 19 Jan 2023
  • Getting Started With Parcel.js: A Web Application Bundler in 2022
    7 projects | dev.to | 2 Nov 2022
    Webpack is the most popular bundler and it followed on the heels of Require.js, Rollup, and similar solutions. But the learning curve for a tool like webpack is steep. Getting started with webpack isn’t easy due to its complex configurations. As a result, in recent years another solution has emerged. This tool is not necessarily a front-runner, but an easier-to-digest alternative on the front-end module bundler landscape. Introducing Parcel.js.
  • When to use Requirejs and when to use bundled javascript?
    2 projects | /r/codehunter | 21 Apr 2022
    This may be a dumb question for web guys. But I am a little confused over this. Now, I have an application where I am using a couple of Javascript files to perform different tasks. Now, I am using Javascript bundler to combine and minify all the files. So, at runtime there will be only one app.min.js file. Now, Requirejs is used to load modules or files at runtime. So, the question is if I already have all things in one file, then do I need requirejs? Or what is a use case scenario where I can use requirejs and/or bundler?
  • Un manual práctico sobre los sistemas de módulos de JavaScript
    5 projects | dev.to | 21 Apr 2022
  • JavaScript Module Formats and Tools
    3 projects | dev.to | 16 Apr 2022
    AMD (Asynchronous Module Definition), is a pattern to define and consume module. It is implemented by RequireJS library. AMD provides a define function to define module, which accepts the module name, dependent modules’ names, and a factory function:
  • Why do we need a Single Page Application? [closed]
    3 projects | /r/codehunter | 15 Mar 2022
    A lot of SPA frameworks and libraries also were developed. We can find out some of its on the internet. They are AngularJs, Reactjs, BackboneJs, DurandalJs,.. and a lot of third party components to make the Javascript coding more easy like RequireJs, Amplifyjs, BreezeJs...
  • [AskJS] - Deep differences between AMD and CJS?
    3 projects | /r/javascript | 14 Dec 2021
    AMD, which was introduced in 2010, uses define/require and loads modules asynchronously. RequireJS is the popular choice for using the AMD syntax in the browser.
  • JS Modules
    6 projects | dev.to | 3 Jul 2021
    A module loader interprets and loads a module written in a certain module format at runtime. Popular examples are RequireJS and SystemJS.

systemjs

Posts with mentions or reviews of systemjs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-15.
  • Rails upgrade to angular 2
    2 projects | /r/codehunter | 15 May 2023
    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.
  • Modern SPAs without bundlers, CDNs, or Node.js
    8 projects | news.ycombinator.com | 16 Feb 2023
    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...
  • JS Modules
    6 projects | dev.to | 3 Jul 2021
    A module loader interprets and loads a module written in a certain module format at runtime. Popular examples are RequireJS and SystemJS.

What are some alternatives?

When comparing RequireJS and systemjs you can also consider the following projects:

browserify - browser-side require() the node.js way

HeadJS - The only script in your HEAD.

SeaJS - A Module Loader for the Web

lazyload

modulejs - Lightweight JavaScript module system.

script.js - Asyncronous JavaScript loader and dependency manager

ESL - enterprise standard loader

di4js - The di4js module is dependency injection implementation in JavaScript.

curl - curl.js is small, fast, extensible module loader that handles AMD, CommonJS Modules/1.1, CSS, HTML/text, and legacy scripts.