#CanIUse
Use new CSS without breaking anything
👉 Start writing CSS with confidence: https://thecascade.dev/courses...
ilo.im
November 9, 2026 at 6:12 AM
1. Browser compatibility tools.

CanIUse helps you check browser support for CSS and features.
Check the website: caniuse.com

BaseWatch helps you track feature availability.
Check the website: basewatch.dev

2/5
November 6, 2026 at 9:00 AM
いつもとなりにCanIUse
October 26, 2026 at 6:33 AM
There is a canIUse equivalent for assistive technologies in creation: https://acd.lolaslab.co

Go support them if you can! https://opencollective.com/lolas-lab/projects/acd

#accessibility #a11y #webdev
Accessibility Compat Data - Open Collective
Improve browser and screen-reader compatibility data and make it more widely available.
opencollective.com
October 25, 2026 at 11:43 PM
I've been banging my head, trying to figure out why my iPhone's Safari isn't rendering. Turns Out(tm) that alpha() isn't supported on iOS 18's Safari.
It works on my Sequoia Mac because Safari is updated independent of the OS.
Golly, this is annoying. Back to color-mix(), I guess.
October 23, 2026 at 4:42 PM
jxl isn't baseline yet, even if it is available for chrome, firefox and safari. i'd wait until most browsers listed on CanIUse support it.
caniuse.com/jpegxl
JPEG XL (JXL) image format | Can I use... Support tables for HTML5, CSS3, etc
caniuse.com
October 17, 2026 at 1:29 PM
the issue right now is that not too many browsers even support JXL, right now on caniuse it's at 16.95%, which is not nearly high enough to even consider using
JPEG XL (JXL) image format | Can I use... Support tables for HTML5, CSS3, etc
caniuse.com
October 16, 2026 at 4:13 PM
Fix Cannot find module 'caniuse-lite/dist/unpacker/agents' Why npm install, npm ls and update-browserslist-db all report a healthy tree while the error stays, and the one reinstall that actually puts the missing files back. Topics: npm, browserslist, nextjs https://www.iloveblog…
October 13, 2026 at 1:01 AM
Yesterday I did some long overdue updates to this project.

The caniuse and bcd datasets can now be updated by the app itself. The app also warns when the datasets are quite old.

Now also shows baseline status indicators.

github.com/bramus/caniu...
October 10, 2026 at 8:37 PM
Inspired by `caniuse` I renamed the namecheck project to `caniname`

caniname.netlify.app

Currently checks Netlify subdomain names and NPM package names. Any other checks to add?
caniname – Check Project Name Availability Across Netlify, NPM, and More
A zero-dependency CLI tool and Node.js library to check project name availability across Netlify, NPM, and more.
caniname.netlify.app
October 8, 2026 at 5:49 PM
update-browserslist-db 1.3.4 regressed since 1.3.3 😞

🔴 14% bigger unpacked
update-browserslist-db - npmx
CLI tool to update caniuse-lite to refresh target browsers from Browserslist config
npmx.dev
October 7, 2026 at 8:33 PM
JPEG XL milestone! The brand new #Chrome 155 adds support for #JXL. And #Firefox follows next week when releasing version 158.
Got the updated Chrome. Test it quickly at thorium.rocks/misc/jxl-tes....
Caniuse: caniuse.com/jpegxl
JPEG XL Test Page
thorium.rocks
October 7, 2026 at 5:51 AM
One of the things I've found is that AI heavily indexes resources like caniuse and mdn. Then assumes that is all that is needed to use an aria pattern. aria-orientation is a big one that it assumes just works but has relatively limited screen reader support. Many popular libs hit this too like shad
October 2, 2026 at 8:55 PM
great - only 2-3 years left until it starts approaching 95% tracked usage on caniuse (unless there’s a way to polyfill)
September 29, 2026 at 11:35 PM
JPEG XL looks not to have good browser support yet, but it looks like AVIF became usable around 2023 caniuse.com?search=AVIF
September 27, 2026 at 5:30 PM
These are some REALLY NEAT css features. I sure hope mobile safari supports these on the Duo

https://blog.stephaniestimac.com/posts/2023/05/design-foldable-devices/
Designing for Dual Screen and Foldable Devices With CSS - Stephanie Stimac's Blog
Revisiting the CSS media queries and environment variables for foldable devices.
blog.stephaniestimac.com
September 12, 2026 at 4:19 AM
I just checked caniuse and Safari doesn't support viewport segments 🤨

They support the Visual Viewport API but not the media queries.
September 10, 2026 at 11:15 AM
Caniuse has been known to miss stuff especially if it's not in any release notes but I'm also surprised if they even parse the media queries beyond what an unknown media query does.

I definitely wouldn't expect anything until at least 27 but probably would wait till 27.1 or be iOS only or something
September 10, 2026 at 11:18 AM
Just took a look at Baseline Overview 🚀

A minor thing that might be worth a note. Support data can look skewed because support is not confirmed - e.g. cursor shows limited support because you know fingers on mobile 😉

(limited is also shown on caniuse)
September 10, 2026 at 8:19 AM
The feature I would like to propose has a specification (IETF RFC), but no test-suite yet and only partial coverage on MDN/CanIUse. Is it possible to test protocol headers (HTTP) at wpt.fyi?
web-platform-tests dashboard
wpt.fyi
September 6, 2026 at 9:18 AM
Some possible Interop proposals from scanning CanIUse:

- box-decoration-break: https://caniuse.com/css-boxdecorationbreak

- customizable select elements: https://caniuse.com/customizable-select

- SVG context-fill/stroke for markers: https://caniuse.com/wf-context-fill-stroke

- Auto sizing […]
Original post on front-end.social
front-end.social
September 3, 2026 at 10:52 PM