Mikaël Sévigny

Interested in setting aside the magical prompter and learning some web standards skills the old fashioned way? You can sign up for my online Web Components course for free until Oct 31 with the code markitzero. If you find it useful, please consider letting folks know! 🎃

I'm so gosh-darned excited! css-tricks.com/css-tricks-h...

I don’t know what’s ahead for web development, and I couldn’t change it if I did. What I do know is that I want more than this for us. I want more than this for you. I may not know what happens next, but I know that I can help you be ready for it. So I’m not done. wil.to/js4e/newslet...

Really good post from @ky.fyi that mirrors a lot of the thoughts I've had about the current moment. ky.fyi/posts/ai-bur...

✨ Have you ever wondered whether JavaScript animation libraries like GSAP or Motion are as performant as raw CSS transitions/keyframes? The answer is surprisingly nuanced. We dig into the question in my brand-new blog post:

I've had the delight of going through Practical Accessibility by @sarasoueidan.com a few years back, and it has radically improved how I think about and implement a11y. If you want to create websites that show any degree of care towards users, you should check it out. And it's 25% off until June 5!

For the past 6 years, I’ve been working on developer education full time, on my online courses + blog. It’s been an incredible privilege to be able to focus on this stuff. ✨ I’m starting to wonder, though, whether the business model I’ve chosen is sustainable. Let me explain… 🧵

Josh's Whimsical Animations course is INCREDIBLE. It contains all of the amazing tricks that he's curated over the years, for you to install onto your own brains. e.g., I went from having no knowledge of the Canvas API to being able to create snazzy animations like these fireworks from scratch.

🎉 Registration is now open for my latest course, Whimsical Animations! This course will teach you everything you need to know to design and build stunning, creative animations and interactions. It’s time to make the web less generic and boring! 😄

They battled their way to the finals. @tolin.ski vs @joshwcomeau.com Be honest… is your bracket still alive?

I ❤️ homemade websites. All the differences and nuances thanks to individual preferences and decisions. Visual and technical diversity. Here is also where we can tell where web development really stands, how much it has evolved. The homemade part of the Web is—the Beautiful Web. #web #indieweb

"It’s really tempting to say that you’re just “using the resources you have” when you use a simple query here and there, but your brain is the best resource you’ll have for the rest of your life, and you should keep it sharp." @cassidoo.co Do not give up your brain 🔗 cassidoo.co/post/good-br...

It's week 2 of The Callback and I've only managed to make it weirder. Check it out to learn: - The three scariest acronyms in Web Dev - How we're finally going to get people to practice accessibility - How to be maximally bathroom efficient youtu.be/GYUVIe8xCr4

I’m super excited to see what people come up with for this! The winner gets a copy of my animations course 😄

@joshwcomeau.com is still running his Black Friday for another 18+ hours. If you're a web developer who wants to learn from the tippity top, do was last-year-me said and get this bundle (which, admittedly, should've been titled "Bundle of Joy"). Plus, you'll be supporting one helluva great fella.

Friendly reminder: the Black Friday sale I’m running ends tomorrow! 🎈 The best deal is on the bundle, which is an eye-watering US$500 off right now. 👀 www.joyforjs.com

Love this, UIs can be actual _fun_ to use while also being useful colorpalette.pro

If you’re thinking of participating in the #AdventOfSystemSeeing this year, you have a good reason to treat yourself to a new notebook to journal in, and maybe even some nice pens or whatever. Last year’s daily journal prompts got turned into this (pdf): www.ruthmalan.com/systems/2025...

A lot of folks know me for one or two posts, and might not know I've created nine (9!) visual explanations of computer science topics, aimed at practitioners. If you're looking for things to read this Thanksgiving, I think you'll love them. Computer science is a lot of fun, when explained well. ❤️

The whole @badass.dev empire is running 50% discounts. - @marcysutton.com with testingaccessibility.com - @mattpocock.com with totaltypescript.com - me with TestingJavaScript.com, EpicWeb.dev, and EpicReact.dev Great time to grab top tier education!

All my courses and live coaching are on sale for Black Friday on my new site! If you believe in the Don't Imitate Understand motto, a repost is much appreciated! dontimitate.dev

It's Black Friday! 🏷️ We released *18 versions* and *42 new major features* in 2025 alone. From video recording to advanced emulation, Polypane is the most powerful tool for web developers. Get your *22% lifetime discount* today: 👉 polypane.app/black-friday/

A bit of a vulnerable post by me but we need your help to get us through what has been a more difficult period than 2020. It would be really appreciated if you could read and share in your networks too 💛 bell.bz/its-been-a-v...

Said time is, of course, the week of Black Friday — about which I have some Big Feelings: wil.to/newsletters/... So, if you’re in a position where you’re able to do so, help me make sure JavaScript for Everyone lives up to its name by paying a little more for it. Hear me out:

One year of Complete CSS 🎉

🎈 The Black Friday sale of my two flagship courses has officially begun! The best deal is on the “Joy for JavaScript Developers” bundle, which is a whopping $500 off during this sale. 😄 I’m also running sales on each course individually, they’re both ~40% off. ✨ More info in-thread. 🧵

Sara's course is the best resource on accessibility that I'm aware of; each lesson is packed with useful and actionable information. I can't recommend it enough!

Watch for tips, tricks, and blunders in tech interviews for 2025 nerdy.dev/on-general-m...

We’re live!! My brand-new course, “Whimsical Animations”, is now available. 🥳🎉 whimsy.joshwcomeau.com I’m so excited to share all of my animation tools and techniques with y’all. 😄

One of the most powerful tools in my toolbox is SVG. When combined with CSS and JavaScript, we can do some truly remarkable things. ✨ 📝 I’ve just published a brand-new blog post that covers the most critical fundamentals. It’s chock full of interactive demos. 😄 Check it out:

we really put the "face" into "interface" didn't we? lol

⚡ Did you know that migrating from JSDOM to Vitest Browser Mode is a matter of swapping two imports?

✨ In March 2023, I published an article about AI. This was right after OpenAI showcased how GPT4 could turn a hand-drawn sketch of a website into real HTML/CSS/JS. The consensus online was that FE jobs would stop existing within 1-2 years. Well, it’s been 2 years! So, I just published a follow-up:

For one week only we're dropping the price of Complete CSS from £249 to £169! There's no code required, just head on over and grab your copy. If you're coming in from a country that gets Purchasing Parity Power (PPP) you can still apply those discounts at checkout too. piccalil.li/complete-css

G̶o̶o̶g̶l̶e̶r̶… ex-Googler. nerdy.dev/ex-googler

in Chrome 135 - Tomorrow Mar 26, 2025 customize all the parts of a <select> with #CSS! ⤷ nerdy.dev/customize-a-...

I was going to make this public on Monday, but since it's all done, I figured why not pull the trigger earlier :) - www.youtube.com/playlist?lis...

A cool thing I made on #CodePen: interactive demo illustrating how to use #SVG `feColorMatrix` to swap 2 channels of its input. codepen.io/thebabydino/... Viewport adaptive. Heavily commented code if you want to check how the demo works in the back. Makes use of modern #CSS features. Made with ❤️.

At the beginning of 2024 I had newborn twins and two-year-old twins, I developed arthritis, and I got laid off while on paternity leave. Since then, Steve and I started a business and doubled our old salaries. 2024 was the hardest year of my life. Here's my review 👇

🎊 Happy New Year! I discovered a lot of very cool dev stuff in 2024, from libraries to devtools to educational resources. Thought it’d be fun to share them all, to help kickstart your 2025! Let’s go through the list. 🧵

Created a new Vite + React Router project through its CLI, and my goodness, it generates a lot of files. 😅 I miss Create React App. Was such a nice idea to tuck the config inside react-scripts and only reveal it when users opt in. Perfect for teaching, and for quick prototypes.

I am this 🤏 close to start teasing my book cover. A little more work on small things, formatting for the right distribution size, and I think that will be the time.

🔥 One of my favourite hidden macOS features is the scroll hotkey gesture. By holding ⌘ (Command) and scrolling down, we zoom WAY IN on the cursor’s location. I learned this trick for highlighting stuff in video tutorials, but it comes in handy a lot in my day-to-day life!

"Inaccessible products are broken products. The first step to fix them is to give a damn." uxdesign.cc/giving-a-dam... #a11y

Did you know it's called the View Transition API (and not the View Transitions API [plural])? Now MDN knows too (github.com/mdn/content/...) so there's no reason to keep using the wrong name. Learn about this and other misconceptions in this post: developer.chrome.com/blog/view-tr...

CSS Wrapped 2024 is here! Just like last year, we – the Chrome DevRel team – have published CSS Wrapped, our end of year overview of all the new #CSS and Web UI features that landed in Chrome and The Web Platform in 2024. 👉 chrome.dev/css-wrapped-... is the place to be!

Bought the print collection last year and they're truly a joy to read! I'm grabbing How Git Works to complete the set 😁

Journal: Going Offline is online …for free Read the book I wrote about service workers. It’s all yours. 🔗 adactio.com/journal/21578

Bluesky now has over 20M people!! 🎉 We've been adding over a million users per day for the last few days. To celebrate, here are 20 fun facts about Bluesky: