System Designer

System Designer is an IDE for designing applications driven by the model.No matter the frameworks you use and the code you write, the most important is the model that you define to create your application.
System Designer helps you to design this model and to generate the classes and components to build your application.
DESIGN YOUR APPLICATION WITH UML
If you look at the different JavaScript frameworks on the market, you will notice that they all have their own way to define a model, generally only with code.
System Designer uses UML, a standard, to define your model.
So you probably already know how to create a model in System Designer even if you have never run it.
The definition of the model is stored on a JSON format called MSON.
With MSON you can define types, classes, one to one / one to many relationships and multi inheritance between classes.
CODE THE BEHAVIOR OF YOUR MODEL
Once you have created your model, System Designer generates the skeletons of all your methods.
You only have then to add your code to implement them.
System Designer provides you helpers to manage your components.
You can easily navigate threw your components to create your application.
CREATE COMPONENTS GRAPHICALLY
There is no need to code to instantiate a component.
Create a component in System Designer is like creating a document in a NoSQL Database.
In fact, System Designer acts as an ODM (Object-Document Mapper) to manage your components as NoSQL Documents.
RUN YOUR APPLICATION
You can run your application directly from System Designer.
Because you have defined a model for your application, a Dynamic Type Check is done on every action of your application.
All warnings are send and shown in System Designer.
DESIGN ON THE GO
System Designer can be used on macOS, iPad, iPhone, Android or any browsers.

System Designer has a Github module to synchronize your work between all these apps.
You can begin your design on your Mac and then continue it on your iPad.