Augmented reality (AR) and Virtual Reality (VR) bridge the digital and physical worlds. They allow us to take in information and content visually, in the same way, we take in the world. For easier development of such realities, there are many libraries and frameworks. With the help of these, we could create our own reality environments. Here I've listed some of such frameworks which can be used to get started with.
:a: Web framework for building virtual reality experiences.
Image tracking, Location Based AR, Marker tracking. All on the Web.
Web Augmented Reality. Image Tracking, Face Tracking. Tensorflow.js
Repository for the WebXR Device API Specification.