Which features are web developers most excited about, going into 2026? 🏆 github.com/web-platform... The developer-signals repo collects upvotes and comments on features that are not yet available across major browsers, and there are a few clear favorites...

doing everything without JS again and it's so nice that invoker commands, popover and CSS anchor positioning exists now

TIL: Compression Dictionary Transport 💡 A new HTTP feature that can dramatically shrink the size of your responses, especially when serving content that changes often but includes a lot of repeated structure (think: JSON, JS, CSS). Learn more 👇 developer.mozilla.org/en-US/docs/...

MDN is more than just a resource. It's a community of developers, contributors, and learners passionate about web development. Contribute to, 📚 MDN documentation 🤝 Help other devs 💟 Localize content 📝 Review or write on MDN Start now 👇 developer.mozilla.org/en-US/commu...

November's Baseline digest is here with big news for Next.js users → goo.gle/4q4jrXJ We're covering the framework's move to Baseline support, new case studies from Target and Cybozu, and a wave of widely available color features.

🆕 The URL Pattern API is Newly Available! Use it to match and extract parts of URLs, no need to reinvent routing logic. Supports literals, wildcards, named groups, and even regex constraints. Learn how it works 👇 developer.mozilla.org/en-US/docs/...

HTML invoker commands are newly baseline! Here's how they work…

Answering some of your questions about what it means now LCP and INP are "Baseline Newly available" across all major browsers. Let me know if you have any more! web.dev/blog/lcp-and... #CoreWebVitals #webperf

Pro tip: you can use webstatus.dev to browse entire groups of related features For example, if you want to see more web performance APIs available across browsers, you can write a query like this and upvote every feature in the list: webstatus.dev?search_id=f0...

Do you know about the developer-signals repo? If you want to see a feature supported across browsers, now you can go and upvote it, anytime github.com/web-platform...

CSS @​scope has landed in Firefox 146, making it a new baseline feature. Here's how it works:

🎉 And we're live! 🎉 We just launched CSS Wrapped 2025: our annual recap of all things CSS & web UI that landed in Chrome over the course of the year. 🚀 This is a big one! We highlighted 22 new features to help you build better on the web. Check out: chrome.dev/css-wrapped-2025

Tired of hacking together deep copies with JSON.parse(JSON.stringify(...))? 🔁 The structuredClone() method lets you safely clone complex JavaScript objects. No data loss. No surprises. Just clean, reliable cloning. Learn more 👇 developer.mozilla.org/en-US/docs/...

JPEG XL in Chromium update: “[...] we would welcome contributions to integrate a performant and memory-safe JPEG XL decoder in Chromium. In order to enable it by default in Chromium we would need a commitment to long-term maintenance.” groups.google.com/a/chromium.o...

GitHub Copilot in VS Code has been my daily driver, but yesterday I decided to give Antigravity a try The rumors are true, it's actually incredible

Autocorrect has become our worst enema.

A friend asked for science fiction book recommendations, so I made a list on Bookshop. Support independent bookstores as well as your local freelancer who reads a lot... These are some of my favorites! #booksky bookshop.org/lists/scienc...

This time every year I try to get through my reading list. Usually it's a bunch of sci-fi but this is first on my list. PS: give me your sci-fi recommendations!

The ::details-content CSS pseudo-element is now part of Baseline → goo.gle/3KOg08B You can now style the expandable/collapsible contents of a <details> element, enabling smoother transitions and custom background colors for a better user experience.

Command invokers soon to be baseline newly available! Also field-sizing is finally here. Some other nice changes too!

TIL that `dns-prefetch` is now baseline "newly available". I've been using this for ages, but apparently, it only started working in iOS Safari with version 26. Here are the release notes: webkit.org/blog/17333/w...

👀 Navigation API will be available in all browsers soon 🎉 Completely redefines the APIs used to build client-side routers / SPAs 🫤 History API: popState, link click.preventDefault() ... ✅ Navigation API: clean, centralized way to intercept navigation events 👌

ECMAScript excitement 😉 Congrats to @manishearth.bsky.social on unflagging TC39 Stage 3 Temporal in V8 today. Heading for Chrome 144 🎉 By many metrics this new date-time API is the single biggest change to JS ever 🔥 V8 uses Boa's temporal_rs by @jason-williams.co.uk Kevin Ness & Manish 👍

setHTML(), Trusted Types and the Sanitizer API. Ollie Williams shows how these APIs protect against XSS by sanitizing HTML safely and enforcing trusted types. Supported in Firefox Nightly and Chrome Canary, with wider adoption coming. #security #html olliewilliams.xyz/blog/sanitiz...

Why does "vibe coding" usually not lead to anything productive? A great person to answer is @addyosmani.bsky.social: working on Chrome for 10+ years, and is the author of the book Beyond Vibe Coding. Watch or listen: • YouTube: youtu.be/dHIppEqwi0g • Spotify: open.spotify.com/episode/12dW...

Building secure, real-time communication apps just got a major boost. WebRTC Encoded Transforms are now a Baseline Newly Available feature, enabling high-performance, end-to-end encryption on encoded frames → goo.gle/3Iy3md6

#JavaScript: When it comes to breaking up long tasks, the scheduler API seems quite convenient: await scheduler.yield(); Alas, not supported by Safari yet: caniuse.com/mdn-api_sche... Thankfully, providing your own fallback implementation is easy: web.dev/articles/opt...

Deprecating XSLT in browsers. Chrome plans to remove XSLT (the XML transformation language) due to low usage and security risks. Deprecation starts in version 143, full removal in 155. WHATWG, Firefox, and Safari expressed support. #browser #chrome groups.google.com/a/chromium.o...

this is going to be so useful when it finally lands in node 24 and we can make the same router run front/backend cleanly. combined with view transitions? c'mon! web.dev/blog/baselin... (ht @ash.pink for sharing)

atob was so confusingly named 😅

✅ Newly Available: CookieChangeEvent It lets you respond to cookie changes as they happen, using modern event-driven logic in your app or service worker. The event is fired when cookies are added, changed, or deleted. Try now 👇 developer.mozilla.org/en-US/docs/...

🏆 And the Baseline Tooling Hackathon winners are... → goo.gle/47KQ6ve Nearly 3,000 developers submitted hundreds of innovative projects, but only 3 could take home their share of the $10,000 prize pool.

JavaScript top-level await is no longer considered 'baseline' due to a pretty big Safari bug caniuse.com/mdn-javascri... The module graph fails in cases where two modules import a third at the same time. Demo: random-stuff.jakearchibald.com/bug-repros/t... It's best to avoid the feature for now 😔

Match URLs with a powerful, standardized syntax using the URL Pattern API → goo.gle/47iTr3o Now part of Baseline, this API provides a built-in way to create URL pattern matchers that can be used against URLs or individual URL components.

My little side project has been a capo plugin for ESLint so you can catch <head> validation issues during development

Quite the journey!

Maybe the least helpful code completion ever

We've already had a great response to this. Thank you everyone who took the time to make a ranking - I know there's a lot of proposals. If you haven't, there's still time! bsky.app/profile/fire...

We've taken the new version of the Core Web Vitals Tech Report out of Beta and now consider this the report to use: httparchive.org/reports/tech... Anyone still using the old Looker Studio-based report, it's time to check out the new goodness with much quicker response times and improved UX!

With View Transitions now being Baseline Newly available, and the View Transition API consisting of various features, it can be confusing to know what is supported in which browser versions. To help with that, I created this VT Feature Explorer (powered by View Transitions) web.dev/blog/same-do...

Largest Contentful Paint (from Core Web Vitals) is now available in Safari Technology Preview. webkit.org/blog/17504/r...

As an experiment, we (the Firefox team) wanted to try a new way to get feedback on which Interop proposals matter most. So, here's a web app where you can rank the proposals you care about, giving us data we can use when reviewing which ones to champion. interop-rank.jakearchibald.com

💥 did a small drawing explaining the JS execution model including the event loop. I hope it’s helpful to folks. Debugging is always easier when the underlying implementations are understood.

If you've been thinking about entering the Baseline Tooling Hackathon, the clock is ticking! 3 days left 2800 developers $10,000 in prizes baseline.devpost.com

Simplify your build toolchains with native Baseline support → goo.gle/46cTnCR Thanks to a collaboration between the Browserslist team and the WebDX Community Group, a new set of Baseline queries has been included directly in Browserslist itself.

🔥 New blog post! Covering, among other things: - Why making simple things easy and complex things possible is not enough - How to maximize your UI’s signal-to-noise ratio - Why you can’t uncover friction through user feedback - How to prioritize user needs lea.verou.me/blog/2025/us...

Did you know that AVIF (the AV1 Image File Format) was supported in all the major browsers (Firefox, Safari, Chrome/Edge)? This has been the case for almost 2 years at this point.

✅ Baseline now has full feature coverage, making it easier to know which web platform features are ready to use. Build the next wave of Baseline-powered tools and compete for $10,000 in prizes → goo.gle/424SBWc

There's a nice series from @sturobson.com getting into *why* and *how* to "un-Sass" CSS. www.alwaystwisted.com/articles/UnS... @jeffbridgforth.com is making a similar leap and shares how he's approaching it: css-tricks.com/is-it-time-t...

The WebDX Community Group is hosting an AMA on the r/webdev subreddit tomorrow. This is the group behind the "State of ..." surveys and Baseline, so if you have questions about those initiatives—or anything else around developer experience, join us! web.dev/blog/baselin...