The EyeDropper API: Pick Any Pixel Color on the Screen
The EyeDropper API lets web apps offer a browser-provided eyedropper mode so users can pick a color from any pixel on their screen—even outside the browser—using clear, user-driven controls.
Encrypted Media Extensions (EME): Decrypting Protected Video in the Browser
Encrypted Media Extensions (EME) is the web platform’s standard way to enable playback of encrypted, DRM-protected media in the browser. Rather than handling decryption directly, your application coordinates with the browser’s Content Decryption Module (CDM): it requests access to a media key system via Navigator.requestMediaKeySystemAccess(), attaches the resulting MediaKeys to a specific HTMLMediaElement with setMediaKeys(), and then manages the message exchange for licenses/keys through a MediaKeySession. When the media element encounters encrypted initialization data, it fires an encrypted event (represented by MediaEncryptedEvent), and the CDM can emit session messages (MediaKeyMessageEvent) that your app relays to whatever key infrastructure you use. EME is widely available across modern browsers and is typically restricted to secure contexts (HTTPS).
A Quick Tour of the Web Encoding API
Modern web apps live at the boundary between JavaScript strings and raw bytes. The Web Encoding API exists to make that boundary explicit and safe: it lets you encode a string into UTF‑8 bytes and decode bytes back into text. Importantly, these operations aren’t symmetrical—encoding targets UTF‑8, while decoding can interpret UTF‑8 and many legacy encodings. Alongside the synchronous TextEncoder and TextDecoder, the platform also provides stream-based variants for processing text incrementally as data arrives.
EditContext API: A New Foundation for Custom Web Editors
The experimental EditContext API gives developers a new foundation for building custom rich text editors by separating text input and selection from rendering. Instead of relying on contenteditable, you attach an EditContext to a focusable element and manage your own text model, selection state, and UI updates—while still receiving browser-grade events for typing, caret movement, and IME composition. This demo highlights the core event flow and why character bounds matter for accurate input UI, especially in custom-rendered editors.
Device Posture API: Detect Foldable Screen Posture on Web
The Device Posture API helps web apps adapt to foldable devices by detecting whether a screen is continuous or folded and reacting to posture changes.
Device Orientation Events: Turning Phone Tilt into UI (A Tiny Demo Walkthrough)
Device Orientation Events let web apps read a phone’s real-world tilt and rotation. This demo streams alpha/beta/gamma values, smooths jitter, and maps motion to a 3D box—while handling HTTPS requirements and iOS permission prompts.
A gentle intro to the Credential Management API
The Credential Management API lets your site securely store and retrieve user credentials through the browser’s built‑in manager—no brittle autofill hacks required. In our demo, a successful login stores a PasswordCredential, and a single click later retrieves and auto-fills it for returning users. It’s a progressive enhancement: your form still works everywhere, but supported browsers deliver a faster, lower-friction sign-in. Pair it with proper autocomplete attributes today, and plan for WebAuthn/passkeys to level up tomorrow.
The Contact Picker API: Fast, private access to a user’s address book
The Contact Picker API lets mobile web apps open the native contacts chooser so users can share exactly the fields you request—like name, phone, email, address, or avatar—without granting blanket access to their entire address book. It’s user-initiated, privacy-preserving, and perfect for speeding up invites and form fills.
Mastering the Console API: A Developer’s Best Debugging Friend
Ever find yourself relying solely on console.log() for debugging? You’re missing out on the Console API’s full potential. This powerful debugging toolkit offers specialized methods for timing operations, inspecting complex objects, tracing function calls, and organizing your debugging output. In just minutes, you can elevate your troubleshooting skills from basic to professional-grade. Let’s explore how the Console API can transform your development workflow and help you solve bugs more efficiently than ever before.
A quick look at the Compute Pressure API: smarter performance under load
The Compute Pressure API lets web apps sense system strain (CPU and thermals) and adapt in real time—preventing throttling, stutter, and battery drain.