Polypane. Browser for web devs

@polypane.app

See every screen, device & user preference, while you build. Chromium-based workspace for building great websites. Built for web developers who care | Try out for free at https://polypane.app | By @kilianvalkhof.com

@polypane.app

We've updated our color contrast checker at colorcontrast.app.

1. It now gives suggested colors for APCA failures too
2. You can use color names along with regular color notations
3. It comes with a WebMCP tool, if you're into that.

The contrast checker on our own site is updated too.

@polypane.app

…okay apparently I should’ve added this way earlier, you all greatly prefer this over the other methods 😅 Just a reminder that I am very responsive to any user request you might have.

@polypane.app

You can now create a new Polypane account by signing in with Google, alongside the existing GitHub and username/password registration options.

A three-pane overview of the trial signup page on Polypane.app showing it on mobile, tablet and desktop.
@polypane.app

If you're an accessibility auditor or implementer, Polypane 31 has a massive time-saving feature for you! With per-pane zoom settings, you can now check 100% page zoom right alongside 200% and 400% zooms, letting you check WCAG 1.4.4 and 1.4.10 in one fell swoop, with easy comparison back to 100%.

A website in three panes in Polypane at three different zoom levels: 100%, 200% and 400%
@polypane.app

There’s also search and filtering in the elements panel, an updated chromium version, active scrolling indicators, high-dpi screenshot support, we cut download size by 25%, show your llms.txt in the meta panel and added new features to the outline and browse panels, but that didnt fit in the post.

@polypane.appReposted by @polypane.app

Polypane 31 is here and ...it has a boatload of cool new features!

🖼️ Canvas layout with free-form placement
↔️ Flex item inspector
🎯 Navigate to custom properties ...and back!
🔍 Per-pane zoom settings
🏎️ Page performance monitoring
📱new iPhone 18 and duo presets

polypane.app/blog/polypan...

@kilianvalkhof.comReposted by @polypane.app

Working on an infinite canvas is just so, so smooth.

Polypane. Browser for web devs@polypane.app

Polypane 31 is here and ...it has a boatload of cool new features! 🖼️ Canvas layout with free-form placement ↔️ Flex item inspector 🎯 Navigate to custom properties ...and back! 🔍 Per-pane zoom settings 🏎️ Page performance monitoring 📱new iPhone 18 and duo presets polypane.app/blog/polypan...

polypane.appPolypane 31: Canvas layout, elements panel improvements and Chromium 155 | PolypaneThis release has a new canvas layout that lets you freely arrange panes on an infinite canvas. The elements panel now lets you filter styles, search the DOM…
@polypane.app

Polypane 31 is here and ...it has a boatload of cool new features!

🖼️ Canvas layout with free-form placement
↔️ Flex item inspector
🎯 Navigate to custom properties ...and back!
🔍 Per-pane zoom settings
🏎️ Page performance monitoring
📱new iPhone 18 and duo presets

polypane.app/blog/polypan...

@polypane.appReposted by @polypane.app

Go to definition for CSS custom properties is pretty nice. Finding your way back with a single click, that's even nicer.

@polypane.appReposted by @polypane.app

The root scroller in your browser (the one scrolling the viewport) is special, but it's really easy to accidentally create a new scroll container. Learn how those nested scroll containers break scroll restoration, mobile browser UI and more, plus how to avoid them.

@polypane.app

The root scroller in your browser (the one scrolling the viewport) is special, but it's really easy to accidentally create a new scroll container. Learn how those nested scroll containers break scroll restoration, mobile browser UI and more, plus how to avoid them.

@kilianvalkhof.comReposted by @polypane.app

I've been debugging sites using different scroll containers at different viewports widths and thinking of ways to make it clearer what's happening, rather than people thinking the sync in Polypane doesn't work. The first change is in: highlighting the scroll badge of whatever is being scrolled.

@kilianvalkhof.comReposted by @polypane.app

There's apparently a thing about Cloudflare's tunnel...

So a reminder that @polypane.app has that feature built-in. Single click, network or public URL, short-lived unique non-indexed URL. Everything is synced to all devices, all console messages are sent back to the console.
polypane.app/portal/

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