Eric Portis
@ericportis.com
Web developer; used-to-be-a-printmaker; Let’s Share What We Know
Whomst amongst us has not saved $50 on a Black Friday ✨💰 deal 🤑✨, and felt a little thrill?
@wil.to makes an unconventional proposal—but I must admit—I am intrigued. Deeper thrills await. wil.to/newsletters/...
@wil.to makes an unconventional proposal—but I must admit—I am intrigued. Deeper thrills await. wil.to/newsletters/...
It is Black Friday.
wil.to
November 25, 2025 at 10:20 PM
Whomst amongst us has not saved $50 on a Black Friday ✨💰 deal 🤑✨, and felt a little thrill?
@wil.to makes an unconventional proposal—but I must admit—I am intrigued. Deeper thrills await. wil.to/newsletters/...
@wil.to makes an unconventional proposal—but I must admit—I am intrigued. Deeper thrills await. wil.to/newsletters/...
Reposted by Eric Portis
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...
“[...] 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...
November 22, 2025 at 7:57 AM
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...
“[...] 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...
Reposted by Eric Portis
Here’s a recording of this “Two-Phase View Transition” concept.
The flow goes like this:
- Click a link
- VT into the loading screen
- Fetch the data of the new page in the background
- VT into the new page
The flow goes like this:
- Click a link
- VT into the loading screen
- Fetch the data of the new page in the background
- VT into the new page
November 19, 2025 at 10:06 AM
Here’s a recording of this “Two-Phase View Transition” concept.
The flow goes like this:
- Click a link
- VT into the loading screen
- Fetch the data of the new page in the background
- VT into the new page
The flow goes like this:
- Click a link
- VT into the loading screen
- Fetch the data of the new page in the background
- VT into the new page
Reposted by Eric Portis
There are many goodies that are newly and widely available in Baseline. backdrop-filter is so much fun to work with and I am obsessed with AVIF images and the ability to animate from display: none with @starting-style. And how easy is it to lazy load images now? web.dev/articles/bas...
How to implement an image gallery using Baseline features | Articles | web.dev
Image galleries are a common user interface pattern on the web. Learn how to create one using Baseline features.
web.dev
November 14, 2025 at 7:25 PM
There are many goodies that are newly and widely available in Baseline. backdrop-filter is so much fun to work with and I am obsessed with AVIF images and the ability to animate from display: none with @starting-style. And how easy is it to lazy load images now? web.dev/articles/bas...
Likes are now florps and the masonry switch will be `display: grid-lanes`
The phrasing of this resolution is entertaining: github.com/w3c/csswg-dr...
[css-grid-3] Masonry Switch Syntax · Issue #12022 · w3c/csswg-drafts
In #11243 we ended up resolving to: Re-use the grid-* properties for templating and explicit placement. Adopt the item-flow proposal (in principle) for flow control. See #11480 With that context, I...
github.com
November 13, 2025 at 6:10 AM
Likes are now florps and the masonry switch will be `display: grid-lanes`
Reposted by Eric Portis
At the CSS WG meeting, we're discussing possibly natively doing fit-text in CSS. Send us your use cases (with screenshots/links)!
Do you ever need to fit multi-line text?
Do you ever need to fit non-text inline elements (e.g. icons)?
Do you adjust font-size, letter-spacing, or both?
Do you ever need to fit multi-line text?
Do you ever need to fit non-text inline elements (e.g. icons)?
Do you adjust font-size, letter-spacing, or both?
November 13, 2025 at 1:20 AM
At the CSS WG meeting, we're discussing possibly natively doing fit-text in CSS. Send us your use cases (with screenshots/links)!
Do you ever need to fit multi-line text?
Do you ever need to fit non-text inline elements (e.g. icons)?
Do you adjust font-size, letter-spacing, or both?
Do you ever need to fit multi-line text?
Do you ever need to fit non-text inline elements (e.g. icons)?
Do you adjust font-size, letter-spacing, or both?
That is an *incredible* approximately five-foot-tall cardboard bug.
November 11, 2025 at 5:01 PM
That is an *incredible* approximately five-foot-tall cardboard bug.
Reposted by Eric Portis
Responsive typography is getting so much simpler. This already works in a couple browsers, and the fallback is minimal:
--progress: progress(100vi, 320px, 1200px);
font-size: calc-mix(var(--progress), 1rem, 1.25rem);
But that will get even better…
#CSS
codepen.io/editor/miria...
--progress: progress(100vi, 320px, 1200px);
font-size: calc-mix(var(--progress), 1rem, 1.25rem);
But that will get even better…
#CSS
codepen.io/editor/miria...
CodePen
codepen.io
November 6, 2025 at 9:55 PM
Responsive typography is getting so much simpler. This already works in a couple browsers, and the fallback is minimal:
--progress: progress(100vi, 320px, 1200px);
font-size: calc-mix(var(--progress), 1rem, 1.25rem);
But that will get even better…
#CSS
codepen.io/editor/miria...
--progress: progress(100vi, 320px, 1200px);
font-size: calc-mix(var(--progress), 1rem, 1.25rem);
But that will get even better…
#CSS
codepen.io/editor/miria...
Reposted by Eric Portis
I partnered with Fable to evaluate their pay-per-project offering. Its an amazing way to get insights into how disabled people actually use your service, and what they think about it. ericwbailey.website/published/ev...
Evaluating Fable’s pay-per-project offering
Get valuable insight about how your digital experience works for disabled people..
ericwbailey.website
November 5, 2025 at 4:17 PM
I partnered with Fable to evaluate their pay-per-project offering. Its an amazing way to get insights into how disabled people actually use your service, and what they think about it. ericwbailey.website/published/ev...
Reposted by Eric Portis
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 👍
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 👍
November 4, 2025 at 7:49 PM
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 👍
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 👍
Reposted by Eric Portis
Finally telling the story of what happened when some rando turned me into a meme coin and the Twitter community full of AI-generated art featuring me that sprang up to promote it. cloudfour.com/thinks/that-...
That time some rando turned me into a meme coin
"I think someone made one of my tweets into a meme coin." She said, "I'm not sure I know what those words mean." I replied, "I'm not sure I do either."
cloudfour.com
October 30, 2025 at 10:16 PM
Finally telling the story of what happened when some rando turned me into a meme coin and the Twitter community full of AI-generated art featuring me that sprang up to promote it. cloudfour.com/thinks/that-...
Casper’s spoopy but Casper (2000) Track 1 is: *spooky*. youtu.be/henyMRqMBws?...
Gameboy Halloween: Spooky Chiptune Bangers
YouTube video by 0xabad1dea
youtu.be
October 30, 2025 at 6:05 PM
Casper’s spoopy but Casper (2000) Track 1 is: *spooky*. youtu.be/henyMRqMBws?...
Well this is lovely! visualrambling.space/dithering-pa...
Dithering - Part 1
Understanding how dithering works, visually.
visualrambling.space
October 28, 2025 at 4:39 PM
Well this is lovely! visualrambling.space/dithering-pa...
For the last year+ I’ve worked with my little Supernote sitting on the desk in front of my big fifteen-year-old cracked-plastic Cintiq, pretending I live in a computing world that grew out of notebooks and whiteboards rather than typewriters. And it makes me happy.
Well, I regret to say that I *love* the Supernote. For the work I do and the things I need, the defaults are aces and egghh the pen is so good. eBay time for the Remarkable.
Notebook/tablet people, do I *really* want to switch from a reMarkable to a Supernote?
Imagine that I am somehow who hates change and also hates spending money, but also someone who writes and annotates an enormous number of words by hand and finds the reMarkable stuff difficult to keep organized.
Imagine that I am somehow who hates change and also hates spending money, but also someone who writes and annotates an enormous number of words by hand and finds the reMarkable stuff difficult to keep organized.
October 27, 2025 at 11:19 PM
For the last year+ I’ve worked with my little Supernote sitting on the desk in front of my big fifteen-year-old cracked-plastic Cintiq, pretending I live in a computing world that grew out of notebooks and whiteboards rather than typewriters. And it makes me happy.
If you use Cloudinary and VS Code, you should check out cloudinary.com/blog/cloudin...
Introducing the Cloudinary VS Code Extension: Manage Your Media Development Flow Without Leaving Your IDE!
Explore the new Cloudinary VS Code Extension (Beta). Manage and upload assets without leaving your IDE.
cloudinary.com
October 23, 2025 at 10:34 PM
If you use Cloudinary and VS Code, you should check out cloudinary.com/blog/cloudin...
Reposted by Eric Portis
Largest Contentful Paint (from Core Web Vitals) is now available in Safari Technology Preview.
webkit.org/blog/17504/r...
webkit.org/blog/17504/r...
Release Notes for Safari Technology Preview 230
Safari Technology Preview Release 230 is now available for download for macOS Tahoe and macOS Sequoia.
webkit.org
October 16, 2025 at 8:53 PM
Largest Contentful Paint (from Core Web Vitals) is now available in Safari Technology Preview.
webkit.org/blog/17504/r...
webkit.org/blog/17504/r...
Reposted by Eric Portis
I dug into progressive image rendering and found a bunch of common assumptions aren't quite true.
➡️ JPEG & WebP progressive-renders worse in Safari
➡️ AVIF _does_ support progressive
➡️ But JPEG XL in Safari doesn't
➡️ JPEG XL decodes much slower than AVIF
⬇️ and more
jakearchibald.com/2025/present...
➡️ JPEG & WebP progressive-renders worse in Safari
➡️ AVIF _does_ support progressive
➡️ But JPEG XL in Safari doesn't
➡️ JPEG XL decodes much slower than AVIF
⬇️ and more
jakearchibald.com/2025/present...
The present and potential future of progressive image rendering
Exploring progressive image rendering across JPEG, PNG, WebP, AVIF, and JPEG XL.
jakearchibald.com
October 16, 2025 at 10:16 AM
I dug into progressive image rendering and found a bunch of common assumptions aren't quite true.
➡️ JPEG & WebP progressive-renders worse in Safari
➡️ AVIF _does_ support progressive
➡️ But JPEG XL in Safari doesn't
➡️ JPEG XL decodes much slower than AVIF
⬇️ and more
jakearchibald.com/2025/present...
➡️ JPEG & WebP progressive-renders worse in Safari
➡️ AVIF _does_ support progressive
➡️ But JPEG XL in Safari doesn't
➡️ JPEG XL decodes much slower than AVIF
⬇️ and more
jakearchibald.com/2025/present...
Reposted by Eric Portis
At last, today is the day. I am immensely proud to announce that JavaScript for Everyone is here.
Tell a friend, tell a Slack channel — write it on a slip of paper, fold it once, and slide it across your boss' desk without breaking eye contact. _It's time to get weird._
piccalil.li/javascript-f...
Tell a friend, tell a Slack channel — write it on a slip of paper, fold it once, and slide it across your boss' desk without breaking eye contact. _It's time to get weird._
piccalil.li/javascript-f...
JavaScript for Everyone
A high quality, expansive written course that will elevate your JavaScript skills to a level you never thought was achievable.
piccalil.li
October 14, 2025 at 3:56 PM
At last, today is the day. I am immensely proud to announce that JavaScript for Everyone is here.
Tell a friend, tell a Slack channel — write it on a slip of paper, fold it once, and slide it across your boss' desk without breaking eye contact. _It's time to get weird._
piccalil.li/javascript-f...
Tell a friend, tell a Slack channel — write it on a slip of paper, fold it once, and slide it across your boss' desk without breaking eye contact. _It's time to get weird._
piccalil.li/javascript-f...
Reposted by Eric Portis
It's here. JavaScript for Everyone is now available to…everyone!
The amount of effort and experience packed into this course is unbelievable and we know you're going to love it.
Get yours for £189, down from £249, for 2 weeks and super-charge your career prospects
piccalilli.link/js4e-launch-...
The amount of effort and experience packed into this course is unbelievable and we know you're going to love it.
Get yours for £189, down from £249, for 2 weeks and super-charge your career prospects
piccalilli.link/js4e-launch-...
JavaScript for Everyone
A high quality, expansive written course that will elevate your JavaScript skills to a level you never thought was achievable.
piccalilli.link
October 14, 2025 at 8:21 AM
It's here. JavaScript for Everyone is now available to…everyone!
The amount of effort and experience packed into this course is unbelievable and we know you're going to love it.
Get yours for £189, down from £249, for 2 weeks and super-charge your career prospects
piccalilli.link/js4e-launch-...
The amount of effort and experience packed into this course is unbelievable and we know you're going to love it.
Get yours for £189, down from £249, for 2 weeks and super-charge your career prospects
piccalilli.link/js4e-launch-...
👀 @giannirosato.com has been producing some fantastic image compression tools giannirosato.com/blog/post/oa...
giannirosato.com
October 14, 2025 at 4:58 AM
👀 @giannirosato.com has been producing some fantastic image compression tools giannirosato.com/blog/post/oa...
Reposted by Eric Portis
This is it. 86,791 words. 836 emdashes. 625 `const`, 141 `let`, 16 `var`. One (1) reference to the pause music from Battletoads for the NES.
Spread the word: JavaScript for Everyone launches tomorrow.
Spread the word: JavaScript for Everyone launches tomorrow.
October 13, 2025 at 4:55 PM
This is it. 86,791 words. 836 emdashes. 625 `const`, 141 `let`, 16 `var`. One (1) reference to the pause music from Battletoads for the NES.
Spread the word: JavaScript for Everyone launches tomorrow.
Spread the word: JavaScript for Everyone launches tomorrow.
Reposted by Eric Portis
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
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
Interop Feature Ranking
Rank the web platform features you care most about
interop-rank.jakearchibald.com
October 9, 2025 at 5:00 PM
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
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
Reposted by Eric Portis
Folks who want to see JPEG-XL supported in more browsers, what is it about the format that attracts you to its use on the web?
October 7, 2025 at 2:16 PM
Folks who want to see JPEG-XL supported in more browsers, what is it about the format that attracts you to its use on the web?
Safari 26 on Sequoia: buggy and gets laggy as heck for me. Had to switch from Compact to Separate tabs because I often stopped being able to close tabs w/ mouse. Scrolling, interacting with the URL bar, & DevTools often getting multiple-second lags until I close all tabs and quit/re-open. Just me?
October 3, 2025 at 4:54 PM
Safari 26 on Sequoia: buggy and gets laggy as heck for me. Had to switch from Compact to Separate tabs because I often stopped being able to close tabs w/ mouse. Scrolling, interacting with the URL bar, & DevTools often getting multiple-second lags until I close all tabs and quit/re-open. Just me?