News

1033: 8 New CSS, JS and HTML Features You Should Know

Scott and Wes run through eight new CSS, JS, and HTML features landing in browsers; including the relative alpha() color function, the progress() function for calculating values between units, Promise.allKeyed(), and…

MicroLighter: Syntax Highlighter

Syntax highlighting for code blocks without the complicated markup, spans, classes, and bloated JavaScript, courtesy of Uncle Dave. MicroLighter: Syntax Highlighter originally handwritten and published with love on…

Balancing flex items with flex-wrap: balance

WebView2 is moving to a 2-week release cadence

Microsoft Edge is moving to a two-week release cycle , and the WebView2 Runtime is moving right along with it. Starting with 152, the WebView2 Runtime will align with Edge's new two-week major-release cadence, instead…

Intent to Ship: JPEG XL

It isn’t often that new image formats land in browsers. In the early 2000s we had JPEG, GIF, and PNG. The 2010s gave us WebP, which was a modest step up from JPEG. But the 2020s have given us two new image formats that…

WordPress PHP-Only Block Registration

Seven and half years after blocks arrived in Core, WordPress introduces a way to build blocks without React annd build pipelines. All you need is PHP. WordPress PHP-Only Block Registration originally handwritten and…

1032: Stripe Buys OpenRouter for $7B

Scott and CJ break down Stripe's $7B acquisition of OpenRouter, the SvelteKit 3 release candidate, and their first look at TanStack Charts. Plus Zed's new Delta editor, stealing reasoning traces from proprietary LLM…

Resolved: CSS Class Prefix Selector

A newly resolved proposal would allow us to select classes that are a prefix for variations with a wildcard, like .prefix-* . Resolved: CSS Class Prefix Selector originally handwritten and published with love on…

CSS Navigation Matching, Early Days

Apply a style when someone navigates from one specific page to another. The idea being it'd make the sources for cross-document view transitions declarative in CSS rather than managing that stuff in JavaScript. CSS…

1031: My Coding Skills Are Atrophying

Scott and Wes answer your questions about coding in the AI era, atrophying skills from too much autocomplete, whether it’s finally time to leave VS Code, chasing flow state with agents, and which single AI subscription…

WordPress.com Student Plan

As someone who teaches beginning web development, I find that building a WordPress site makes for a great final project. Hosting those projects has always been a roadblock though. WordPress.com Student Plan originally…

Dark mode toggles: two states are enough

Lea's pushing back on light/dark mode implementations that display three state options for visitors: light, dark, and system. Dark mode toggles: two states are enough originally handwritten and published with love on…

1030: AI Assistant Hacks Gym

An AI assistant goes rogue and hacks a gym website, a $9k surprise Cloudflare bill lands in someone’s inbox, and AI subscriptions start promising unlimited usage. Plus Meta’s Muse Glimmer, Agent Plugins, Kimi K3 in…

What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More

Plus, how to style skeleton UIs, how to enable diagonal scrolling, how images can overflow themselves, and yet, still more. Basically, how to do a lot of really cool (CSS) stuff. What’s !important #17: Custom Highlight…

Release Notes for Safari Technology Preview 250

Safari Technology Preview Release 250 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General →…

The SvelteKit 3 Release Candidate is here

SvelteKit 3 is now in the Release Candidate phase. If all goes well — meaning that people like you try it out and find that it works as expected — we will follow it up with a stable release in the near future, with no…

Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong

The warning is correct. And the recommended fixes you've probably seen are wrong. Here's what you can do instead to properly fix the issue. Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong…

1029: The Workflow of the Future With Zed

Nathan Sobo joins Scott and Wes to explain why Zed was built in Rust, how GPUI works, and what happens to editors once agents write most of the code. They also talk about DeltaDB, Zed’s new Git-compatible version…

Animating CSS border-image

Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates beautiful effects. Animating CSS border-image originally…

SmashingConf Freiburg 2026, September 7-10

Smashing Magazine’s in-person conferences are back and returning to the wonderful city of Freiburg next month, September 7–10. SmashingConf Freiburg 2026, September 7-10 originally handwritten and published with love on…

1028: Cloudflare Wallets

Cloudflare is rolling out crypto wallets with claimable handles as identity, and a real React compiler finally landed for regular hooks-based code. Plus: OpenAI's pricing war, Vue Vapor benchmarks, GitHub's new npm…

Moving the Microsoft Edge extensions ecosystem forward with Manifest Version 3

Back in 2020, we committed to Manifest Version 3 (MV3) as the future direction of the Chromium extensions platform. Since then, we've worked with developers, listened to feedback, and continued evolving Microsoft Edge…

Using and Styling the Dialog Element

There's a lot of nuance to the element, a seemingly little piece of web architecture. I've got some notes from digging into it. Using and Styling the Dialog Element originally handwritten and published with love on…

2026 State of CSS, Devs Surveys

A few notes and takeaways from the 2026 State of CSS survey results, including a nice CSS-Tricks cameo! 2026 State of CSS, Devs Surveys originally handwritten and published with love on CSS-Tricks . You should really…

Dark mode toggles: two states are enough

A good two-state toggle can actually express all three data model states. Until recently, if you looked at most websites with a theme toggle [1] , you’d find three options: Light , Dark , and System . figure {…

1027: The Rise of the Design Engineer

Scott and Wes tackle your questions on the rise of the design engineer, why AI still lacks “taste” (and why it’s about more than just looks), and how to actually write tests in the age of AI-assisted coding. Plus: is AI…

Bring your security stack into Edge for Business — with support for more partners

At a glance Edge for Business security connectors extend your security tools into the browser, so you gain visibility and enforcement where work happens. This update adds new partner integrations, including Cisco Secure…

Gap Decorations Are Now Available, Here’s What’s New

Today, with CSS gap decorations fully supported in Chrome and Edge, starting with version 149, you can now very easily style gaps, and with a lot of control. Gap Decorations Are Now Available, Here’s What’s New…

1026: OpenAI Agent Hacks Hugging Face

A rogue OpenAI agent allegedly hacks Hugging Face, the React Compiler lands in Rust, and a fresh Rust full-stack framework ships. Scott, Wes, and CJ also dig into Anthropic’s $1.5B copyright settlement, Claude Opus 5,…

What’s new in Svelte: August 2026

The biggest news this month is the first @next releases of SvelteKit 3. Thirteen preview versions shipped in July: previewing new $app/manifest and $app/service-worker modules, improved API availability and type…

Get Ready For the Powerful CSS border-shape Property!

We recently got the shape() function and corner-shape property. What else could we possibly need as far as making shapes in CSS? Let me tell you: the border-shape property! Get Ready For the Powerful CSS border-shape…

What’s !important #16: sibling-index() Animations, Use Cases for the infinity Keyword, Container Stuck Queries, and More

The soon-Baseline sibling-index() function for animations, CSS and the 2026 FIFA World Cup, use cases for the infinity keyword, container "stuck" queries, and more. What’s !important #16: sibling-index() Animations, Use…

The CSS lh unit

Release Notes for Safari Technology Preview 249

Safari Technology Preview Release 249 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General →…

1025: The Open Web's second chance (w/ Dan Abramov)

Dan Abramov joins Scott and Wes to explain AT Protocol, the open standard quietly rebuilding the social web. They get into how it actually works, why it’s way bigger than just Bluesky, and why Dan calls it one of the…

WebKit Features for Safari 26.6

Safari 26.6 is here. This release adds a small refinement to WebAssembly’s streaming compilation paths, and delivers eight bug fixes across CSS, service workers, networking, extensions, and WebRTC. This release…

1024: Open Models Replace Big AI

A huge week for open models: Inkling (the first big US open-weight model since Gemma 4), Qwen 3.8, and Kimi 3 all dropped. Plus Vue 3.6 RC + Vapor Mode, the slow death of Stack Overflow, a decoy font that blinds AI, and…

Release Notes for Safari Technology Preview 248

Safari Technology Preview Release 248 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General →…

1023: Mosh, Caddy & Tailscale: A Remote Dev Deep Dive

Running your dev process off your main machine doesn’t have to mean the cloud. Scott and Wes break down how to host projects on a box you can reach from any device, close your laptop mid-build, and keep long-running…

1022: Bun re-written in Rust, Zig team big mad

CJ and Scott break down the biggest week in web dev: TypeScript 7 ships with a 10x-faster native port, Bun gets rewritten in Rust (much to the Zig team’s dismay), and Better Auth joins Vercel. Plus GPT-5.6 first…

Rebuilding FIFA Standings Layout with CSS Subgrid

1021: We got addicted to an AI model we can't talk about

Dax Raad, co-founder of OpenCode, joins Scott and Wes to talk remote dev servers, OpenCode 2.0, and why his team is “addicted” to AI models they’re not even allowed to name yet. Show Notes 00:00 Intro 00:43 Welcome to…

1020: Do You Read The Code?

Auto-accept on, brain off? We’re getting into whether anyone actually reads the code they ship anymore — then it’s HTTP’s first new method in 16 years (meet QUERY) and OpenAI’s compute-hungry “Sol Ultra” tier landing in…

In defense of polyfills

If you’re a web developer, you may find the title baffling. “Polyfills need defending? Who’s against them?!” you might ask. Two weeks ago, I’d be in the same boat. Polyfills and I go way back. I dug up a JSConf EU talk…

1019: LGTM, Ship It: The AI Code Review Problem

This episode tackles the growing pains of AI-assisted development, from the struggle of reviewing thousands of lines of agent-generated code to the mounting technical debt when teams merge PRs without meaningful human…

New in Edge for developers – Style layout gaps, improve keyboard accessibility and migrate your PWA to a new origin

Welcome to New in Edge for developers , a new series featuring recent web platform updates in Microsoft Edge that help web developers build better sites and apps. In this first edition, we'll look at CSS gap decorations…

1018: Google fires Workspace CLI Creator

Google fires the engineer behind its Workspace CLI tool, OpenAI previews GPT-5.6 with three new model tiers, and Astro 7 lands with a full Rust rewrite. Plus: Coinbase cuts token costs with smarter routing, and more in…

Introducing the Safari MCP server for web developers

Update: In Safari 27 beta and Safari Technology Preview 247 , we’re introducing the Safari MCP server — a Model Context Protocol server for web developers that makes your web development and debugging workflow faster…

Release Notes for Safari Technology Preview 247

Safari Technology Preview Release 247 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General →…

1017, We need to stop calling it “AI”

Scott and Wes raid the listener mailbag to settle the pnpm vs. npm debate, decode how web standards sneak into your browser, and ask the big one: is “AI” even intelligent, or just fancy autocomplete? Plus Stack Overflow…

What’s new in Svelte: July 2026

This month brought a real shift in how SvelteKit projects are configured. You can now define your SvelteKit config directly inside vite.config.js and skip svelte.config.js entirely. We also got the first preview of…

1016: More Bots Than Humans

Wes, Scott, and CJ break down the latest web dev news. From AI agents and coding tools to Deno Desktop, Nub, and predictive UX. They also discuss bot-filled social media, remote work debates, and a slick 3D bookstore…

1015: Browsers and UIs are dead. Everything is chat

Is the web dead, or just evolving? Wes Bos breaks down his JS Nation Amsterdam talk on agentic interfaces, why chat won’t replace everything, how Web MCP lets agents interact with your existing sites, and what “Clicks…

PACT: Anonymous Credentials for the Web

This is the technical companion to our update on Distilled, “Keeping the web open and private in the bot era.” Here we take a deeper look at the problem space, the design we’re proposing, and the problems still left to…

1014: Anthropic doesn’t use AI

Scott, Wes, and CJ reunite fresh off a trip to Amsterdam to chat conferences, burnout, and whether Anthropic actually uses AI. They also dig into a packed bag of sick picks and tech news, including HTML streaming in…

Release Notes for Safari Technology Preview 246

Safari Technology Preview Release 246 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General →…

1013: Cloudflare Acquires VoidZero

Live at JSNation in Amsterdam, Scott, Wes, and CJ break down Cloudflare’s acquisition of VoidZero, the company behind Vite, Vitest, Rolldown, and Oxc. They dig into why this is genuinely exciting, not scary, covering…

The golden rule of Customizable Select

Customizable select is coming to Safari 27. With this technology, developers can fully control the appearance of elements — custom arrows, option layouts, color swatches, icons, full visual styling — without the need…

1012: Who Decides What Ships on the Web?

Scott and Wes sit down with Jake Archibald from Mozilla to unpack how web standards actually get made at Firefox. From browser features and developer feedback to the drama around the Prompt API. They discuss Interop…

Faster updates, enterprise-friendly schedule: the new Microsoft Edge release cycle

Microsoft Edge is moving to a two-week release cycle, bringing new features and improvements to users and organizations faster than ever. This is great news for teams that thrive on innovation: instead of waiting a full…

Introducing the Field Guide to Grid Lanes

This week, we launched the Field Guide to Grid Lanes at gridlanes.webkit.org . If you ever bookmarked the CSS Tricks Complete Guide to Flexbox, HTML5 Rocks, or CSS Zen Garden, a guide like this might feel familiar. It’s…

Discover MapKit JS 6: Rebuilt for Today’s Web Developer

MapKit JS allows you to bring the power and simplicity of Apple Maps to your website or web app. Whether you’re building a store locator, a travel planner, or a companion web experience for a native app, MapKit JS…

1011: tmux + Terminal Maxxing with Ben Vinegar

Scott and Wes sit down with Ben Vinegar, former Syntax GM and founder of Modem.dev, to geek out over terminal-maxxing, from SSH-based development and tmux workflows to AI-powered coding agents. Ben also demos two of his…

1010: No one cares anymore?

On this episode, Scott and Wes dig into the messy reality of modern front-end work, from struggling to find skilled devs and navigating team chaos to questioning code quality, testing, and even whether AI is stealing…

Expanding on‑device AI in Microsoft Edge: New models and APIs for the web

At Build 2025, we introduced the Prompt and Writing Assistance APIs in Microsoft Edge with the Phi-4-mini language model. Since then, we've heard from web developers, incorporated your feedback, and expanded Edge's…

1009: 54% AI-Generated and Climbing — State of AI

Scott and Wes react to the freshly released State of AI 2026 survey, covering everything from skyrocketing AI adoption and the rise of coding agents to the pain points, job security fears, and big philosophical…

What’s new in Svelte: June 2026

This month we got a bunch of improvements in SvelteKit’s forms and remote functions. Plus, a new query function ( .live(...) ) that makes accessing real-time data from the server easier. Keep an eye out for a few…

New to the web platform in May

Discover some of the interesting features that have landed in stable and beta web browsers during May 2026.

1008: Diffs, Trees, and VS Code 2.0

Scott and Wes sit down with Alex Sexton and Amadeus De Marzi from Pierre Computer to dig into the gnarly performance challenges behind building blazing-fast code review tools, covering virtualization, progressive…

April 2026 Baseline monthly digest

Read about various happenings with Baseline during April 2026.

1007: 8 Tech Choices to Lock In Before Agentmaxxing

Wes and Scott talk about the foundational decisions that make AI-assisted coding actually work—database schemas, validation, routing, CSS structure, and more. They explore why consistency matters more than specific…

Announcing Web Serial Support in Firefox

Support for Web Serial in Firefox 151 for Desktop Firefox can now connect directly to microcontrollers, development boards, 3D printers, power meters, and other serial-connected hardware from the web. Starting in…

New in Edge for Business: AI for work, safe from day one

TL;DR: Edge for Business adds agentic browsing in limited preview, a Copilot-inspired new tab page, and mobile availability for multi-tab reasoning and YouTube summarization. These experiences are built on a secure…

1006: Can AI Make Good Design?

Wes and Scott talk about whether AI can actually create good design, or if it just remixes the same patterns over and over. They dig into AI-generated UX, design systems, YouTube thumbnails, Google’s design.md spec,…

1005: Programatic and Skill based Video Creation with Remotion

Scott and Wes are joined by Jonny Burger, creator of Remotion, to talk about the explosion of programmatic video, going from 125k to 800k installs per day, and how AI and a new HTML-in-Canvas Chrome spec are changing…

Better fluid sizing with round()

New updates to Edge across desktop and mobile

Edge just made it easier to go from first tab to final plan, wherever you go. Your favorite Copilot experiences, plus new ones, are now available directly in Edge on desktop and, for the first time, in the Edge mobile…

1004: TanHacked

Scott and Wes break down the “Mini Shai-Hulud” supply chain attack that compromised TanStack and other popular npm packages through a clever GitHub Actions cache poisoning exploit; a self-propagating worm that stole…

1003: Skills Skills Skills

Scott and Wes chat all things agent skills for web developers, sharing their favorites for everything from CSS animations and HTML generation to logo extraction, marketing copy, and video creation. Whether you’re just…

Tailwind CSS v4.3: Scrollbars, new colors, and more

Tailwind CSS v4.3 is here with first-party scrollbar styling, even more logical property utilities, new zoom and tab-size utilities, better @variant support, and all the v4.2 stuff we shipped while forgetting blogs…

Behind the Scenes Hardening Firefox with Claude Mythos Preview

@media all and (min-width: 640px) { .post p, .post ul, .post ol, .post dl, .post pre { max-width: initial; } .post table td, .post table th { vertical-align: top; } } Two weeks ago we announced that we had identified…

1002: The Real Pricing of LLMs

In this potluck episode of Syntax, Wes and Scott answer your questions about LLM usage-based pricing, security risks from malicious code in interviews, staying current in a fast-moving dev landscape, a new CSS linter,…

Trustworthy JavaScript for the Open Web

The open web is a critical platform for applications that handle highly sensitive data, from private communications to financial transactions and medical records. Traditionally, servers are trusted to deliver the…

1001: Managing Deadlines + Stress

Scott and Wes tackle the all-too-real stress of crunch time as a web developer—how to handle looming deadlines, avoid sloppy shortcuts, and stay methodical when everything feels like it’s falling apart. They share…

Media Queries Range Syntax

What’s new in Svelte: May 2026

This month we got a ton of improvements to SvelteKit’s remote functions, TypeScript 6.0 support and the experimental release of community plugins in the Svelte CLI. Svelte was also featured in ThoughtWorks Technology…

1000: Syntax Episode 1,000!

Wes and Scott celebrate 1000 episodes of Syntax, reflecting on how the podcast started, the team behind it, memorable moments, listener stats, inside jokes, and how the show has evolved over time—from early recordings…

999: Writing Maintainable CSS

Scott and Wes break down what makes CSS truly manageable—from preventing style leaks and embracing fluid layouts to choosing the right methodology, whether that’s utility CSS, component-scoped styles, or CSS modules.…

New to the web platform in April

Discover some of the interesting features that have landed in stable and beta web browsers during April 2026.

Engineering secure passkey sync in Microsoft Password Manager

Passkeys are designed to replace passwords with strong, phishing-resistant credentials that make sign-in quick, easy, and secure. With Microsoft Password Manager, users can now save and sync passkeys across devices…

998: How to Fix Vibe Coding

Wes and Scott talk about making AI coding more reliable using deterministic tools like fallow, knip, ESLint, StyleLint, and Sentry. They cover code quality analysis, linting strategies, headless browsers, task…

997: Rating and Roasting Your Projects

Scott and Wes dig into a huge batch of community-submitted projects, from JSON tools and CSS editors to AI agents, view transitions, and everything in between. It’s a rapid-fire showcase of what developers have been…

996: 10 New CSS and HTML APIs

Wes and Scott talk about the latest CSS and browser features, including the Grid Lines API for masonry layouts, HTML in Canvas, name-only container queries, CSS random, search-text styling, and more. Show Notes 00:00…

March 2026 Baseline monthly digest

Read about various happenings with Baseline during March 2026.

995: Next.js Vendor Lock-in No More

In this episode, Scott and Wes sit down with Tim Neutkens and Jimmi Lai from the Next.js team to dig into the new Adapters API, what it takes to run Next.js across platforms like Cloudflare and Netlify, and how caching…

994: AI Sucks At CSS

In this potluck episode of Syntax, Wes and Scott answer your questions about AI struggles with CSS and design workflows, learning vs relying on AI, debugging web performance, beginner soldering setups, navigating AI-era…

993: It’s Been A Hell Of Week

Scott and Wes break down a chaotic week in dev news — the Claude Code source leak, a nasty Axios npm supply chain hack, and Railway’s private cache exposure — plus how to keep these nightmare scenarios from hitting your…

992: Migrating Legacy Code Just Got Easier

Wes and Scott talk about migrating large codebases with AI — how to plan framework and language moves, establish patterns, handle templating changes, test thoroughly, safely deploy, and more. Show Notes 00:00 Welcome to…

What’s new in Svelte: April 2026

This month, a new best practices guide was added to the Svelte docs. Check it out, if you haven’t already! On the code side, the Svelte MCP got even easier to use with improvements to the official OpenCode package.…

991: Vite’s bet on Cloudflare (VOID Framework)

Vite just launched Void, a fullstack JavaScript framework and cloud platform that bundles together routing, SSR, auth, an ORM, and nearly everything you’d expect from a modern meta-framework — all built on top of…

February 2026 Baseline monthly digest

Read about various happenings with Baseline during February 2026.

New to the web platform in March

Discover some of the interesting features that have landed in stable and beta web browsers during March 2026.

Firefox Developer Edition and Beta: Try out Mozilla’s .rpm package!

In January, we introduced our Nightly package for RPM-based Linux distributions. Today, we are thrilled to announce it is now available for Firefox Beta! Firefox Beta is great for testing your sites in a version of…

990: Vite Is Taking Over (Vite+)

Wes, Scott, and CJ talk about Vite+, a unified JavaScript toolchain that combines linting, formatting, task running, monorepos, and more. They break down its evolution, open-source shift, performance gains, Node version…

Protect your enterprise from shadow AI and more: Announcements at RSAC 2026

AI has changed how—and where—work happens. Many of today's security risks occur inside the browser, where traditional controls can fall short. At RSAC 2026, we're highlighting strengthened Edge for Business capabilities…

989: State of JS 2025

Scott and Wes dig into the latest State of JS survey results, breaking down which JavaScript libraries, frameworks, and tools are rising, falling, or holding steady in the ever-shifting JS ecosystem. From front-end…

988: Cloudflare’s Next.js Slop Fork

Wes and Scott talk with Steve Faulkner about vinext, a Vite-powered Next.js fork. They dive into AI coding workflows, agent browsers, code quality, and what modern dev tooling looks like in an AI-first world. Show Notes…

987: Remote Coding Agents

Scott and Wes break down the world of remote coding agents — what they are, why you’d want one, and all the different ways you can run them, from Cursor Cloud and Claude Code to an old laptop sitting on your floor. They…

986: Does Code Quality Matter Anymore?

In this potluck episode, Wes and Scott answer your questions about popover navigation patterns, the Vibrate API on iOS, whether code quality still matters in the AI era, Wes’s evolving Obsidian second-brain setup, where…

985: Stop putting secrets in .env

Scott and Wes are joined by Phil Miller and Theo Ephraim to talk about Varlock, a new approach to environment variables that adds schemas, validation, and security to the humble .env file. They dig into the risks of…

984: How to Make a DOM Library Render Anything w/ Paolo Ricciuti

Wes and Scott talk with Paolo Ricciuti about Svelte custom renderers and how Svelte actually talks to the DOM. They dig into compiler internals, CSS handling, native bridges, and the realities of maintaining ambitious…

983: Why I Chose Electron Over Native (And I’d Do It Again)

Wes and Scott talk about building v_framer, Scott’s custom multi-source video recording app, and why Electron beat Tauri and native APIs for the job. They dig into MKV vs WebM, crash-proof recording, licensing with…

January 2026 Baseline monthly digest

Read about various happenings with Baseline during January 2026

External import maps, today!

A few weeks ago, I posted Web dependencies are broken. Can we fix them? . Today’s post is a little less gloomy: Turns out that the major limitation that would allow centralized set-it-and-forget-it import map management…

What’s new in Svelte: March 2026

This month, we got a ton of new features across Svelte, SvelteKit and even the Svelte CLI. Plus, the State of JS 2025 is out and Svelte continues to hold the top spot among reactive frameworks in terms of positive…

Why is WebAssembly a second-class language on the web?

This post is an expanded version of a presentation I gave at the 2025 WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The first version of WebAssembly was already a…

New to the web platform in February

Discover some of the interesting features that have landed in stable and beta web browsers during February 2026.

982: Bots Are Ruining the Internet

Wes and Scott talk about the latest dev news: Node enabling Temporal by default, OpenAI acquiring OpenClaw, TypeScript 6, new TanStack and Deno releases, the explosion of AI agent platforms, and more. Courtney…

Goodbye innerHTML, Hello setHTML: Stronger XSS Protection in Firefox 148

Cross-site scripting (XSS) remains one of the most prevalent vulnerabilities on the web. The new standardized Sanitizer API provides a straightforward way for web developers to sanitize untrusted HTML before inserting…

981: Browsers Are Finally Catching Up (Interop 2026)

Scott and Wes unpack Interop 2026 and the browser features finally aligning across engines, from container style queries and anchor positioning to scroll-driven animations and view transitions. They break down what it…

980: AI Coding Explained

Wes and Scott talk about the state of AI coding in 2026—from editors and models to agents, skills, slash commands, MCPs, and more. They unpack what these things actually do, how they overlap, and how to use them…

Navigation API - a better way to navigate, is now Baseline Newly Available

The Navigation API is now Baseline Newly available, providing a better way to handle navigation in single-page applications.

979: WebMCP: New Standard to Expose Your Apps to AI

Scott and Wes unpack WebMCP, a new standard that lets AI interact with websites through structured tools instead of slow, bot-style clicking. They demo it, debate imperative vs declarative APIs, and share their hottest…

Launching Interop 2026

The Interop Project is a cross-browser initiative to improve web compatibility in areas that offer the most benefit to both users and developers. The group, including Apple, Google, Igalia, Microsoft, and Mozilla, takes…

Interop 2026: Continuing to improve the web for developers

Learn about the features included in Interop 2026.

978: Should A New Coder Use AI?

Wes and Scott answer your questions about AI agents, learning to code with AI, pagination patterns, skilling up from outdated tech stacks, balancing side projects with family life, real-world hacking attempts, and more!…

977: We built a CSS Challenge platform

Scott and Wes break down how they built SynHax, the real-time CSS Battle app powering the upcoming Mad CSS tournament. From SvelteKit and Zero to diffing algorithms, sync conflicts, and a last-minute hackweek glow-up,…

976: Pi - The AI Harness That Powers OpenClaw W/ Armin Ronacher & Mario Zechner

Wes and Scott talk with Armin Ronacher and Mario Zechner about PI, a minimalist agent harness powering tools like OpenClaw. They unpack why Bash is “all you need,” the risks of agents, workflow adaptability, and where…

975: What’s Missing From the Web Platform?

Scott and Wes run through their wishlist for the web platform, digging into the UI primitives, DOM APIs, and browser features they wish existed (or didn’t suck). From better form controls and drag-and-drop to native…

What’s new in Svelte: February 2026

This month brings a few new features to Svelte and SvelteKit and quite a few new libraries from around the community. Also, in case you missed it last month, the Svelte maintainers released patches for 5 vulnerabilities…

The Too Early Breakpoint

974: Clawdbot (Moltbot), Agents and the Age of Personal Software

Wes and Scott talk about building hyper-specific personal software with AI. They explore personal agents, home automation, JSON-as-a-database, and how LLMs unlock fast, custom apps that reduce friction and replace…

973: The Web’s Next Form: MCP UI (with Kent C. Dodds)

Scott and Wes sit down with Kent C. Dodds to break down MCP, context engineering, and what it really takes to build effective AI-powered tools. They dig into practical examples, UI patterns, performance tradeoffs, and…

972: These Things Make Your App Feel Like Crap on Mobile

Wes and Scott talk about why mobile web apps often feel “janky” compared to native—and how to fix it. They cover input zooming, accidental horizontal scroll, pointer/user-select quirks, frame rate consistency, full-page…

971: Stackoverflow and Firefox are Dead?

Is Stack Overflow actually dying, and what does that mean in an AI-driven dev world? Scott and Wes break down the latest web dev news, from Firefox’s AI crossroads and Apple’s browser engine changes to new tools, docs,…

CVEs affecting the Svelte ecosystem

We’ve released patches for 5 vulnerabilities across devalue , svelte , @sveltejs/kit , and @sveltejs/adapter-node . Here’s what you need to know: Upgrade now If you’re using any of these packages, upgrade them to their…

970: Why Did Anthropic Buy Bun?

Wes and Scott answer your questions about whether Git GUIs beat the terminal, balancing accessibility with experimental web projects, blocking malicious traffic, smart home setups, why Anthropic bought Bun, navigating…

969: This guy is nuts (TypeScript Doom)

Scott and Wes sit down with Dimitri Mitropoulos to explore the wild edges of TypeScript—from running Doom in the type system to building tools like Typeslayer. They dig into Turing-complete types, performance limits,…

968: Habits and Changes We Want to Make in 2026

Wes and Scott talk about setting realistic goals for the new year, building habits through small, sustainable changes, creating systems that actually stick, and why incremental progress beats big resolutions every time.…

Web dependencies are broken. Can we fix them?

No, this is not another rant about npm’s security issues. Abstraction is the cornerstone of modern software engineering. Reusing logic and building higher-level solutions from lower-level building blocks is what makes…

What’s new in Svelte: January 2026

During the December holiday season, the Svelte team shared 24 days of Svelte knowledge, tips, and insights to unwrap in 2025’s Advent of Svelte . Learn more about under-utilized Svelte features through a series of fun…

967: What’s Going to Happen in Web Dev During 2026

Wes and Scott talk about their bold predictions for web development in 2026, from WebGPU-powered design and modern CSS breakthroughs to JavaScript standards, AI-driven tooling, security risks, the future of frameworks,…

966: A Look Back at Web Dev in 2025

Wes and Scott revisit their 2025 web development predictions, grading hits and misses across AI, browsers, frameworks, CSS, and tooling. From Temporal and AI coding agents to React, Vite, and vanilla CSS, they reflect…

965: Baseline 2025 Features web gained in 2025

Scott and Wes break down the biggest web platform features that reached Baseline in 2025, separating the genuinely useful APIs from the niche and forgettable ones. From same-document view transitions and the Popover API…

964: Markdown as a CMS is a bad idea

In this potluck episode of Syntax, Wes and Scott answer your questions about keyboard shortcuts, choosing frameworks in the age of AI, markdown vs CMSs, backup strategies, moving countries for work, staying relevant as…

963: Hardware Hacking with Matt Brown

Scott and Wes chat with YouTuber and security consultant Matt Brown about breaking into IoT devices, extracting firmware, and decoding the hidden tech inside everyday gadgets. Matt shares his methods, the legal…

962: The Home Server / Synology Show

Wes and Scott talk about their evolving home-server setups—Synology rigs, Mac minis, Docker vs. VMs, media servers, backups, Cloudflare Tunnels, and the real-world pros and cons of running your own hardware. Show Notes…

961: Keeping Up With The Fast and Furious Web

Scott and CJ go live from JS Nation NYC to talk about how developers can actually stay current without drowning in the constant churn of new tools and trends. They break down how to see through the fluff, focus on why…

960: Reacting to the Weird + Creative Corners of the Web

Wes and Scott talk about the weird, creative corners of the web—from live-coded music with Strudel and wild Hydra visuals to shader wizardry, projection-mapping art, fully synced Christmas lights, and more. Show Notes…

959: TypeScript on the GPU with TypeGPU creator Iwo Plaza

Scott and CJ sit down live at JSNation NYC with Iwo Plaza, creator of TypeGPU, to dig into how WebGPU is unlocking a new wave of graphics and compute power on the web. They chat about shader authoring in TypeScript, the…