API overview

[nojaf]

Current status of partially implemented API (as found MDN):

• Attribution Reporting API Experimental
• Audio Output Devices API Experimental
• Background Fetch API Experimental
• Background Sync
• Background Tasks
• Badging API
• Barcode Detection API Experimental
• Battery API
• Beacon
• Bluetooth API Experimental
• Broadcast Channel API
• CSS Custom Highlight API
• CSS Font Loading API
• CSS Painting API Experimental
• CSS Properties and Values API
• CSS Typed Object Model API
• CSSOM
• Canvas API
• Channel Messaging API
• Clipboard API
• Compression Streams API
• Compute Pressure API Experimental
• Console API
• Contact Picker API Experimental
• Content Index API Experimental
• Cookie Store API
• Credential Management API
• DOM
• Device Memory API
• Device Orientation Events
• Document Picture-in-Picture API Experimental
• EditContext API Experimental
• Encoding API
• Encrypted Media Extensions
• EyeDropper API Experimental
• FedCM API Experimental
• Fenced Frame API Experimental
• Fetch API
• File API
• File System API
• File and Directory Entries API
• Force Touch Events Non-standard
• Fullscreen API
• Gamepad API
• Geolocation API
• Geometry Interfaces
• HTML DOM (part of DOMAPI.res)
• HTML Drag and Drop API
• History API
• Houdini API
• Idle Detection API Experimental
• Image Capture API Experimental
• IndexedDB
• Ink API Experimental
• Input Device Capabilities API Experimental
• Insertable Streams for MediaStreamTrack API
• Intersection Observer API
• Invoker Commands API Experimental
• Keyboard API Experimental
• Launch Handler API Experimental
• Local Font Access API Experimental
• Media Capabilities API
• Media Capture and Streams
• Media Session API
• Media Source Extensions Experimental
• MediaStream Recording
• Navigation API Experimental
• Network Information API
• Page Visibility API
• Payment Handler API Experimental
• Payment Request API
• Performance API
• Periodic Background Sync Experimental
• Permissions API
• Picture-in-Picture API
• Pointer Events
• Pointer Lock API
• Popover API
• Presentation API Experimental
• Prioritized Task Scheduling API
• Push API (see PushManager.res, please send a PR to rename)
• Remote Playback API
• Reporting API Experimental
• Resize Observer API
• SVG
• Screen Capture API
• Screen Orientation API
• Screen Wake Lock API
• Selection API
• Sensor API
• Server Sent Events
• Service Workers API
• Shared Storage API Experimental
• Speculation Rules API Experimental
• Storage
• Storage Access API
• Streams
• Topics API Experimental Non-standard
• Touch Events
• Trusted Types API
• UI Events
• URL API
• URL Fragment Text Directives
• URL Pattern API Experimental
• User-Agent Client Hints API Experimental
• Vibration API
• View Transitions API
• VirtualKeyboard API Experimental
• Visual Viewport
• Web Animations
• Web Audio API
• Web Authentication API
• Web Components
• Web Crypto API
• Web Locks API
• Web MIDI API
• Web NFC API Experimental
• Web Notifications
• Web Serial API Experimental
• Web Share API
• Web Speech API
• Web Storage API
• Web Workers API
• WebCodecs API
• WebGL
• WebGPU API Experimental
• WebHID API Experimental
• WebOTP API
• WebRTC
• WebSockets API
• WebTransport API
• WebUSB API Experimental
• WebVR API Non-standard Deprecated
• WebVTT
• WebXR Device API Experimental
• Window Controls Overlay API Experimental
• Window Management API Experimental
• XMLHttpRequest API

Please create a new issue if you want to contribute any missing API you are missing.