Polypane. Browser for devs who care

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-…

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.

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-…

Don't waste your time going up and down a DOM tree scouring for one of sixteen CSS properties that create new stacking contexts. Just use @Polypane. Three clicks is all it takes.

Did you know we wrote a deep dive on offset parents and stacking context? Essential concepts for positioning in all three dimensions. They're hard to debug, but not with Polypane! Contexts are just listed in our elements panel, easy peasy. Read here: polypane.app/blog/offset-pa…

New year, new badges! Like previous years, in 2026 Polypane is also a @SoftwareAdvice Frontrunner and Shortlisted on @Capterra due to the outstanding user reviews (By you! Thank you!!)

From our archives. Forced color mode explained 1 in 25 site visitors using windows have a (high) contrast mode enabled, overwriting all your sites colors. Here's how to design, debug and test for it, even if you don't own a Windows device. polypane.app/blog/forced-co…

Understanding the fundamentals of CSS layout When devs say that CSS is hard, they're usually talking about layout. But developers are assumed to understand and effectively use CSS without being taught how it works in the first place. polypane.app/blog/understan…

Control all browsers on any device from inside Polypane. Synchronised interactions, Inspect and Edit styles, Get Console output. All without a single line of configuration.

"Public portals has proven to be a powerful tool and actually got me excited about remote debugging, otherwise the worst kind of debugging" *No one* likes debugging the weird bug that only happens on that one device you don't own. Portal makes it easy. polypane.app/portal/