WebMCP is available for early preview

A standard way to let AI agents act on your website.

Software engineering is back

“Coding agents have replaced every framework I used.”

State of React 2025

“React has become the default output when you prompt for UI.”

Announcing Interop 2026

Here’s to another year of making the web better!

Interop 2026 Dashboard

This year’s effort to align key web platform features.

Coding agents as the new compilers

AI agents now abstract away all the code.

Thousand ways to sandbox an agent

Pick one and let your AI agent loose.

Reference Target

Improving accessibility when using shadow DOM.

Introducing Markdown for Agents

Cloudflare offers HTML-to-markdown conversion for AI crawlers.

Underlining links with CSS

Modern ‘text-decoration’ properties at a glance.

npmx

A fast, modern browser for the npm registry.

Monochrome Generator

Monochrome color schemes from a random color.

Shades of halftone

An interactive journey through halftone shader techniques.

Measuring SVG rendering time

Do large SVGs render slower than small ones?

The AI hater’s guide to LLM coding

Coding with AI without selling your soul.

The final bottleneck

Coding with or without AI, we remain bottlenecks.

Git 2.53 just dropped

“It’s still evolving exactly where it needs to.”

The CSS ‘:heading’ pseudo-class

Styling HTML headings is about to get easier.

“WebMCP is an exciting W3C proposal”

Making agents play with rather than against the web.

Building typographic scales in CSS

Get ready for :heading(), sibling-index(), and pow()!

“Someday years from now we will look back on the era when we were the last generation to code by hand. We’ll laugh and explain to our grandkids how silly it was that we typed out JavaScript syntax with our fingers. But secretly we’ll miss it.”

From technical debt to cognitive debt

“Velocity without understanding is not sustainable.”

Learn AI

A course in AI fundamentals for web developers.

Customizing lists with modern CSS

Push your HTML/CSS lists to the next level.

The consensus of the AI coding debate

“The work moved, it didn’t disappear.”

Minifier benchmarks

Comparisons of HTML minifier capabilities.

DNS-PERSIST-01

A new model for DNS-based challenge validation.

CSS ‘border-shape’

“The future of the non-rectangular web.”

Debugging with AI

Can it replace an experienced developer?

Proposed for a browser :near() you

Nearby pointer detection via CSS.

Accessible building blocks for the web

Key considerations for common website elements.

NoLoJS

Common JavaScript patterns done with HTML/CSS.

Rely on AI and get left behind

Who will fix code no one understands anymore?

Dictionary Compression is finally here

”It offers absurd real-world traffic reductions.”

CSS Anchor Positioning issues?

Edge cases where it doesn’t work.

Embrace the chaos

The shape and flow of masonry layouts.

Lazy HTML media

Native lazy-loading of video/audio elements is coming!

Extended overthinking

“You could’ve just… made the button.”

From instanceof to Error.isError()

Safer error checking in JavaScript.

The software development lifecycle is dead

“The entire lifecycle is collapsing in on itself.”

New in Firefox 148

AI controls, Sanitizer API, CSS Shape(), and more.

Engineer rebuilt Next.js with AI in a week

“The whole thing cost about $1,100 in tokens.”

Modern guide to the ‘image’ element

From the basics to LCP optimization.

The factory model

Coding by hand or building a software factory?

New to the web platform (February 2026)

HTML Sanitizer API, CSS Shape(), Zstandard, and more.

Front-end Debugging Tools Handbook

Practical guidance on a complete suite of tools.

A complete guide to bookmarklets

How browser bookmarks become tiny web tools.

Native random values in CSS

A first look at the upcoming capabilities.

Start where you are

A practical guide to building with AI.

Modern CSS Code Snippets

Old habits rewritten for the modern web.

The context development lifecycle

Optimizing context for AI coding agents.

Popover API vs. Dialog API

“They seem to do the same job, but they don’t!”

State of Rust 2025

The 10th Rust survey reveals stability and steady growth.

How to kill the code review

What if no one has to read the code at all?

Chrome halves its release cycle

Biweekly releases begin with version 153.

External import maps, today!

Using DOM methods to inject an import map.

Newlines in URLs work

Making long links more readable in HTML.

AI makes engineering more important

Say 71% of developers/engineering leaders.

How we do code reviews

Low-friction code reviews for small teams.

Trying the new CodePen 2.0

“A bit confusing at first, but it’s really powerful.”

MCP is dead, long live the CLI

“The best tools work for both humans and machines.“

4,000 developer machines compromised

When your AI tool silently installs another AI tool.

Accessibility testing takes more than a scan

Uncover accessibility issues that automated tools miss.

How I use Claude Code

”The workflow I’ve settled into is radically different.”

Mad CSS

A battle of 16 CSS virtuosos from around the world.

Learning to code is still valuable

Why bother when AI does it all?

Embrace software engineering’s uncertainty

“Inflection points are moments of opportunity.”

WebPerf Snippets

Performance profiling directly in the DevTools console.

You don’t know HTML tables

A deep dive into their anatomy and mechanics.

Git is the new code

Git commands to check AI-written code.

CodePen 2.0 Beta

Real-time collaboration, folders/files, blocks, and more.

The CSS ‘z-index’ value

“Stop racing for the highest number.”

Scoped registries for custom elements

How independent scopes resolve name clashes.

Markdown, llms.txt, and AI crawlers

Do Markdown and llms.txt matter for your website?

Introducing CSS ‘view-transitions-mock’

A non-visual polyfill for same-document view transitions.

From pages to apps to agents?

“The web is becoming the COBOL of human networking.”

Temporal

The 9-year journey to fix time in JavaScript.

When to use WebMCP and MCP?

They work best together to empower AI agents.

Beyond CSS ‘border-radius’

What the new ‘corner-shape’ delivers to everyday UIs.

The HTML ‘geolocation’ element is odd

“The element in its current state is not very useful.”

The CodePen Compiler

The CodePen 2.0 editor has a whole new brain.

Building dynamic toggletips

A prime example for anchored container queries.

My favorite way to code in 2026

Test-driven development using Playwright.

Implementing WebMCP

“It gives power back to website owners.”

Paywalls for minimalists

A creator’s playbook built mainly on open source.

“My software has been far too stable recently. Gonna do some rebugging.”

Front-end Crossword

The crossword puzzle for front-end developers.

Can We

Websites focused on browser usage and features.

Detect at-rule() support in CSS

A handy feature lands in Chromium 148.

Vite 8.0 is out

It ships Rolldown for up to 10–30x faster builds.

Cognitive debt

“It’s not technical debt, it’s worse.”

SVGs on the web

When to use which loading technique.

Automated accessible text with CSS

contrast-color() is available soon in all major browsers.

CSS contrast-color() beyond black & white

How to unlock more colorful theming options.

Your 404 page has a blind spot

When AI agents crash into blank walls.

Native JSON modules are finally real

From build-time convenience to a runtime primitive.

There is no “wrong” in CSS

What if someone rejects your CSS choices?

BaseWatch

Get alerts for new ready-to-use web features.

The Virtual Keyboard API is broken

The mobile web still struggles with keyboards.

Easier light‑dark mode switching

light‑dark() is about to support images!