Compress and crop images in the tab, with no upload
HelpMyIMG crops and compresses in the tab: about 120 ms versus 4.2 s in the cloud, 70–85% smaller files, and nothing is uploaded.
Stuzhuk Lab — Chemistry of Code
Chemistry of Code
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web platform
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React 19.3: a photo grid morphs into detail without dropping state
Stable ViewTransition waits for React to commit, then morphs a named thumbnail into the detail image while the list keeps its selection.
Passkeys and WebAuthn in production: passwordless login that survives recovery
How to ship registration and sign-in with passkeys: the WebAuthn ceremony, relying-party id, challenges, synced vs device-bound keys, account recovery, and the server checks that demos skip.
HTML over WebSockets: SPAs with barely any JavaScript
The LiveView pattern: server-rendered HTML over a persistent channel—no separate API contract or heavy client framework required.
What CSS is still missing in 2026
State of CSS, layout gaps, centering, declarative partial updates, and how AI reshapes site value.
Cross-document View Transitions: gotchas without a framework
Deprecated meta tags, @view-transition { navigation: auto }, a 4s timeout, and pageswap/pagereveal—what many tutorials skip.
The HTML `<install>` element: PWA install without JavaScript
Chrome and Edge are testing a native install button for web apps — simpler than manifest plus custom JS alone.
Chrome Prompt API: run Gemini Nano locally from JavaScript
LanguageModel.create() with no server or API key—limits, ~4K context, and why a hosted LLM fallback is mandatory.
MDN rebuilds its frontend with web components instead of a React wrapper
How MDN moved from a React SPA shell to Lit, server components, and interactive islands—and why content sites should care.
CSS 2026: what the browser can do instead of JavaScript
Frontend Focus roundup: Grid Lanes in Safari, anchor positioning, sticky headers in pure CSS—and where native features still lose to JS.