✅ Battery Status Information about the system's battery ✅ Beacon Send data without waiting for a response ✅ Broadcast Channel Communication between browsing contexts ✅ Canvas 2D shapes and bitmap images ✅ Clipboard Read and write to system clipboard ✅ Credential Management Manages user credentials ✅ Cross-Origin Sharing Controlled access across origins ✅ Document Object Model Dynamic HTML and XML manipulation ✅ Drag and Drop Enables drag-and-drop ✅ Fullscreen Allows fullscreen mode ✅ Geolocation Geographical location access ✅ History Enables manipulation of session history ✅ Idle Detection Detects when a user is idle ✅ Image Capture Capture image frames from media streams ✅ IndexedDB Low-level API for structured data ✅ Intersection Observer Element enter/exits viewport/parent ✅ Local Overrides Locally override network resources ✅ Media Devices Cameras and microphone access ✅ Media Source Generation of media streams for playback ✅ Mutation Observer Monitors changes to the DOM tree ✅ Network Information Provides information about the network ❌ Page Transition Events to track when a page is loading ✅ Page Visibility Page is visible or hidden ❌ Paint Timing Painting timing information ✅ Payment Request Simplifies handling payments ✅ Permissions Allows requesting permissions from user ✅ Picture-in-Picture Videos played in a floating window ✅ Pointer Events Input events from pointing devices ✅ Push Enables push notifications ✅ Range Selection Allows selection of text ranges ✅ Resize Observer Notifies when an element's size changes ✅ Resource Timing Provides detailed network timing data ✅ Screen Capture Capture content of the screen ✅ Screen Orientation Handles screen orientation changes ✅ Speech Recognition Speech to text ✅ Speech Synthesis Text to speech ✅ Storage localStorage and sessionStorage ✅ SyncManager Background synchronization of data ✅ Template Instantiation Allows instantiation of HTML templates ✅ User Timing Provides APIs for measuring performance ✅ Vibration Allows vibration of the device ✅ Viewport Handles viewport settings and properties ✅ Web Animations Create and control animations ✅ Web Authentication User authentication using public keys ❌ Web Bluetooth Communication for Bluetooth devices ✅ Web Codecs Media encoding and decoding ✅ Web Crypto Hashing, encryption, and decryption ❌ Web Locks Synchronization across contexts ✅ Web MIDI Musical instruments and MIDI ❌ Web NFC Reading and writing to NFC tags ❌ Web Share Enables sharing of content to other apps ❌ Web Share Target Specify what to do with content shared ✅ WebGL Interactive graphics ✅ WebGL2 WebGL extension for advanced features ✅ WebGPU Direct access to GPU ✅ WebOTP One-Time Passwords via SMS ✅ WebRTC Real-time communication of data ✅ WebRTC Data Channels Peer-to-peer data transfer ✅ WebRTC Streams Handles real-time media streams ✅ WebSockets Full-duplex communication