How to make flow chart in MVC ?

Hii all;

I want to design a screen like flow chart view.

That means in page i have Different div and i want to create a connection in between two div.

That connection is also resizable; For clearly understand what actually i want to desgin please visit bellow video link;

Note :- I need same design as video;

https://youtu.be/dzVDKSRtIkc

Please suggest me any idea to do this or any refernece to do this.

If you won't get any cleat picture form video then reply me.

Thanks

Regards:

SK.