Polypane. For devs who care
@polypane.app
The browser for web developers that care about their craft and build for everyone. | Try out for free at https://polypane.app | By @kilianvalkhof.com
New in Polypane 26: all our devices emulate the correct `safe-area-inset-*` CSS environment variables, as well as the correct small viewport height.
Toggle the visualization from the emulation settings to see where they're located. Like browser UI the svh overlay scrolls away when you scroll down.
Toggle the visualization from the emulation settings to see where they're located. Like browser UI the svh overlay scrolls away when you scroll down.
October 1, 2025 at 2:34 PM
New in Polypane 26: all our devices emulate the correct `safe-area-inset-*` CSS environment variables, as well as the correct small viewport height.
Toggle the visualization from the emulation settings to see where they're located. Like browser UI the svh overlay scrolls away when you scroll down.
Toggle the visualization from the emulation settings to see where they're located. Like browser UI the svh overlay scrolls away when you scroll down.
Not every feature needs to be large to be useful.
Our target size tooling detects interactive elements that don't follow WCAG, Google Mobile Friendliness or Apple HIG guidelines. But sometimes that element might be behind our UI.
So in Polypane 25 we added a quick toggle to move it out of the way!
Our target size tooling detects interactive elements that don't follow WCAG, Google Mobile Friendliness or Apple HIG guidelines. But sometimes that element might be behind our UI.
So in Polypane 25 we added a quick toggle to move it out of the way!
July 2, 2025 at 3:39 PM
Not every feature needs to be large to be useful.
Our target size tooling detects interactive elements that don't follow WCAG, Google Mobile Friendliness or Apple HIG guidelines. But sometimes that element might be behind our UI.
So in Polypane 25 we added a quick toggle to move it out of the way!
Our target size tooling detects interactive elements that don't follow WCAG, Google Mobile Friendliness or Apple HIG guidelines. But sometimes that element might be behind our UI.
So in Polypane 25 we added a quick toggle to move it out of the way!
Our updated icon will feel right at home with Liquid Glass in light, dark and mono.
June 14, 2025 at 8:11 AM
Our updated icon will feel right at home with Liquid Glass in light, dark and mono.
Our rulers are getting a new measuring overlay.
Drag and measure an overlaid rectangle that show its dimensions and the distance to edges. Snaps to your guides while dragging.
Or use it as a selection to screenshot a specific area of the page.
Try it in our upcoming release!
Drag and measure an overlaid rectangle that show its dimensions and the distance to edges. Snaps to your guides while dragging.
Or use it as a selection to screenshot a specific area of the page.
Try it in our upcoming release!
May 13, 2025 at 1:15 PM
Our rulers are getting a new measuring overlay.
Drag and measure an overlaid rectangle that show its dimensions and the distance to edges. Snaps to your guides while dragging.
Or use it as a selection to screenshot a specific area of the page.
Try it in our upcoming release!
Drag and measure an overlaid rectangle that show its dimensions and the distance to edges. Snaps to your guides while dragging.
Or use it as a selection to screenshot a specific area of the page.
Try it in our upcoming release!
Wanna hide some social media previews, or maybe just change the way they're sorted so the one you care about most is on top?
We got you.
We got you.
April 23, 2025 at 2:12 PM
Wanna hide some social media previews, or maybe just change the way they're sorted so the one you care about most is on top?
We got you.
We got you.
Edit HTML directly from the elements panel, and Polypane will update your HTML in-place to maintain any event listeners you have attached to the DOM you just edited!
April 23, 2025 at 2:12 PM
Edit HTML directly from the elements panel, and Polypane will update your HTML in-place to maintain any event listeners you have attached to the DOM you just edited!
Need to debug a difficult z-indexing or stacking context issue? Turn on the 3D view to quickly see what's going on ...or to take a peek behind the curtain!
April 23, 2025 at 2:12 PM
Need to debug a difficult z-indexing or stacking context issue? Turn on the 3D view to quickly see what's going on ...or to take a peek behind the curtain!
And then when you're done, you can quickly trim, cut and annotate your video before exporting and sharing it.
April 23, 2025 at 2:12 PM
And then when you're done, you can quickly trim, cut and annotate your video before exporting and sharing it.
Some of the features, starting with video recording.
When you record a pane, we show a custom cursor that makes it easier to follow where your cursor is moving, and it also highlights clicks.
When you record a pane, we show a custom cursor that makes it easier to follow where your cursor is moving, and it also highlights clicks.
April 23, 2025 at 2:12 PM
Some of the features, starting with video recording.
When you record a pane, we show a custom cursor that makes it easier to follow where your cursor is moving, and it also highlights clicks.
When you record a pane, we show a custom cursor that makes it easier to follow where your cursor is moving, and it also highlights clicks.
I slept on it and the interaction where it just always followed the mouse didn't feel great. So now it's drag'n'drop and it's so much nicer.
Ever seen the back of a webpage?
Ever seen the back of a webpage?
April 10, 2025 at 8:01 AM
I slept on it and the interaction where it just always followed the mouse didn't feel great. So now it's drag'n'drop and it's so much nicer.
Ever seen the back of a webpage?
Ever seen the back of a webpage?
Coming soon: a new debug tool that transforms your page into a 3d view showing the elements that create new stacking contexts and have a specified z-index value.
The page remains fully interactive, click to toggle the 3d rotation for when you want to focus or interact.
The page remains fully interactive, click to toggle the 3d rotation for when you want to focus or interact.
April 9, 2025 at 2:20 PM
Coming soon: a new debug tool that transforms your page into a 3d view showing the elements that create new stacking contexts and have a specified z-index value.
The page remains fully interactive, click to toggle the 3d rotation for when you want to focus or interact.
The page remains fully interactive, click to toggle the 3d rotation for when you want to focus or interact.
Tomorrow (April 9th) is CSS Naked Day. Are you ready? css-naked-day.org
April 8, 2025 at 2:06 PM
Tomorrow (April 9th) is CSS Naked Day. Are you ready? css-naked-day.org
...we got told to do better.
Color coded tabs ✅
Color coded tabs ✅
March 13, 2025 at 3:44 PM
...we got told to do better.
Color coded tabs ✅
Color coded tabs ✅
Did you ever waste time figuring out why your changes weren't showing up after refreshing the page? 😬
...yeah us neither. 🫠
Anyway, unrelated, the next release of Polypane will let you rename tabs. How cool is that!
...yeah us neither. 🫠
Anyway, unrelated, the next release of Polypane will let you rename tabs. How cool is that!
March 13, 2025 at 12:34 PM
Did you ever waste time figuring out why your changes weren't showing up after refreshing the page? 😬
...yeah us neither. 🫠
Anyway, unrelated, the next release of Polypane will let you rename tabs. How cool is that!
...yeah us neither. 🫠
Anyway, unrelated, the next release of Polypane will let you rename tabs. How cool is that!
The social media card preview in Polypane is one of our most beloved features. ...But we totally get that you might want to hide some social media and put another one at the top 😉
Shipping in the next release: sortable and hide-able social media cards
Shipping in the next release: sortable and hide-able social media cards
March 11, 2025 at 1:41 PM
The social media card preview in Polypane is one of our most beloved features. ...But we totally get that you might want to hide some social media and put another one at the top 😉
Shipping in the next release: sortable and hide-able social media cards
Shipping in the next release: sortable and hide-able social media cards