How to create Augmented Reality Web app using Unity & Vuforia?

I am developing an Augmented Reality app to be integrated into a website using Unity.I need to take output in WebGL. I am using Vuforia to create AR experience. Since Vuforia is not supported with WebGL, i am not able to build. Please suggest an alternate method or how to do Augmented reality in Unity for Web. Is there any alternative to Vuforia?