I had developed box design tool for clubflyers company.
ASP.NET backend and Fabric.Js, Three.Js are used for 2d and 3d designs.
Also implemented dxf generator for dieline designs.
I have developed Flat Card Design tool.
Backend is ASP.NET MVC and I am using Fabric.Js for canvas work.
And also created logo creator for customers can make their eye-catching login within minutes.