Polypane. Browser for devs who care

Polypane 29 is here! 🥳 It comes with our take on a network panel, our snippet store, a custom selector outline, the best way to test pseudo states, passkey support on macOS, WhatsApp previews, grid/flex overlay visualizations and, like, 10 more things. polypane.app/blog/polypane-…

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Safe-area-inset lets you make the most use of device screens, even with their pesky notches or islands that get in the way. Check out our deep dive to learn how to use safe-area-insets, what to use them for, and the best way to test them on desktop. polypane.app/blog/using-saf…

Polypane has pixel perfect social media previews for ten different social media platforms. That's already much more than any other tool out there. But Polypane is the kind of app that goes to 11. 🧑‍🎤 So we're adding WhatsApp in the next release. polypane.app/social-media-p…

We make good use of the Intl API in our app and on our website, so it was high time we did a Polypane-style deep-dive on it. Check out our new article, play around with the interactive examples or hear Kilian yap about it on video. Whatever works for you! polypane.app/blog/the-intl-…

If you find yourself needing to pitch Polypane to your colleagues, PM or CTO, we made a handy list of common questions they might have and how to address them! polypane.app/docs/pitching-…

We just released Polypane 28.0.2 with many bugfixes, big performance improvements, 25% smaller installer, new warnings in the outline & meta panels and a fix for macOS autoupdate.🥳 Except the fix for macOS autoupdate didn't work.😬 So we also released 28.0.3 to fix that 😎

We just got recognised as the most innovative web developer browser in the Business Excellence Awards by Acquisition International magazine! 😎

Want to share a WIP of your localhost? That's just two clicks in @Polypane. You even get to drive the experience since your interactions are synced. polypane.app/portal/

We just released version 28.0.1 with some bug fixes and nice quality-of-life improvements! Full changelog: #polypane-2801-changelog" target="_blank" rel="nofollow noopener">polypane.app/blog/polypane-…

How to debug the starting-style at-rule in Polypane Why starting-style exists, how to use it, how to inspect and edit it, and a little bit about what makes Polypane's elements panel so different from other devtools and why that makes things better for you polypane.app/blog/how-to-de…

@chazza Oh, thanks! Doing that on the browser level is easier than on a the OS level?

@polypane Staging APIs I use require a VPN to access, its a pain but happens

If you tried installing a VPN or proxy extension into Polypane, can you tell us why? It happens a lot and it's a use case we really want to understand. We follow back, so you can DM if you prefer 🙏

Special shout-out to @SimpleAnalytic which automatically filters out Polypane without you having to do anything 🙌

When working on your own site in Polypane, you probably want to exclude your visits from your analytics tool. We made a list of analytics tools and how do to that directly in Polypane or in their settings. If your tool isn't listed, let us know! #filtering-polypane-in-your-analytics-tools" target="_blank" rel="nofollow noopener">polypane.app/docs/website-i…

Did you know you can right-click any element with an ID to get a link to the document fragment? And just as easily have it formatted as markdown? One of the many things that takes dozens of steps in other browsers that takes two clicks in Polypane.

Polypane 28 is here! This first release of 2026 comes with plenty of improvements to Projects, the new Environments feature prevents you from confusing production for localhost, the Elements panel is faster than ever, and it now all runs on Chromium 146. polypane.app/blog/polypane-…

Our upcoming release has some nice improvements to our form inspector, but did you know we also have a free online form inspector? Paste in your HTML to get an overview of your form's structure to find issues and make improvements polypane.app/form-inspector/

Do you use Polypane to check for Accessibility? Jules Ernst maintains an overview of which WCAG SCs Polypane helps with, and he just updated it with all the latest features in Polypane. An invaluable resource, thanks Jules! 200ok.nl/tips/polypane-…