WebXR is a web technology standard that enables virtual reality (VR) and augmented reality (AR) experiences to run directly in web browsers. It provides a set of APIs that allow websites to access and control VR and AR hardware, such as headsets and motion controllers, without requiring users to install additional software or plugins. This makes immersive 3D experiences more accessible, as users can simply visit a webpage to interact with VR or AR content. WebXR is supported by major browsers and is designed to work across different devices, helping developers create interactive, cross-platform experiences securely and efficiently.