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
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Polypane Black Friday | Polypane
Get the browser for devs who care
polypane.app
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
The Polypane Black Friday sale is live! 🏷️
Get *22% off* on yearly plans.
Whether you're a freelancer or leading a frontend team, Polypane pays for itself by saving you hours of responsive design work every month.
Grab the deal before it’s gone 👉
polypane.app/black-friday/
Get *22% off* on yearly plans.
Whether you're a freelancer or leading a frontend team, Polypane pays for itself by saving you hours of responsive design work every month.
Grab the deal before it’s gone 👉
polypane.app/black-friday/
Polypane Black Friday | Polypane
Get the browser for devs who care for 22% during our Black Friday sale. Available until December 1st.
polypane.app
November 25, 2025 at 6:48 PM
The Polypane Black Friday sale is live! 🏷️
Get *22% off* on yearly plans.
Whether you're a freelancer or leading a frontend team, Polypane pays for itself by saving you hours of responsive design work every month.
Grab the deal before it’s gone 👉
polypane.app/black-friday/
Get *22% off* on yearly plans.
Whether you're a freelancer or leading a frontend team, Polypane pays for itself by saving you hours of responsive design work every month.
Grab the deal before it’s gone 👉
polypane.app/black-friday/
Reposted by Polypane. For devs who care
I think there are two types of developers.
1️⃣ Those who love Polypane
2️⃣ Those who haven't tried it yet
I can't say enough good things and can't imagine trying to develop anything without @polypane.app. Give it a whirl and grab this hot deal while you can.
1️⃣ Those who love Polypane
2️⃣ Those who haven't tried it yet
I can't say enough good things and can't imagine trying to develop anything without @polypane.app. Give it a whirl and grab this hot deal while you can.
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Polypane Black Friday | Polypane
Get the browser for devs who care
polypane.app
November 25, 2025 at 3:55 PM
I think there are two types of developers.
1️⃣ Those who love Polypane
2️⃣ Those who haven't tried it yet
I can't say enough good things and can't imagine trying to develop anything without @polypane.app. Give it a whirl and grab this hot deal while you can.
1️⃣ Those who love Polypane
2️⃣ Those who haven't tried it yet
I can't say enough good things and can't imagine trying to develop anything without @polypane.app. Give it a whirl and grab this hot deal while you can.
Reposted by Polypane. For devs who care
I only ever do these once a year so if you've been on the fence, now's your chance!
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Polypane Black Friday | Polypane
Get the browser for devs who care
polypane.app
November 25, 2025 at 3:23 PM
I only ever do these once a year so if you've been on the fence, now's your chance!
Reposted by Polypane. For devs who care
PSA: Today's Day 4️⃣ of the Black Friday sale.
This is the lowest you can get the course for and it's for a limited time—next year's sales won't be the same.
Price goes back up on December 4th. ⏳
🔗 practical-accessibility.today
#a11y
This is the lowest you can get the course for and it's for a limited time—next year's sales won't be the same.
Price goes back up on December 4th. ⏳
🔗 practical-accessibility.today
#a11y
November 24, 2025 at 2:29 PM
PSA: Today's Day 4️⃣ of the Black Friday sale.
This is the lowest you can get the course for and it's for a limited time—next year's sales won't be the same.
Price goes back up on December 4th. ⏳
🔗 practical-accessibility.today
#a11y
This is the lowest you can get the course for and it's for a limited time—next year's sales won't be the same.
Price goes back up on December 4th. ⏳
🔗 practical-accessibility.today
#a11y
Reposted by Polypane. For devs who care
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Polypane Black Friday | Polypane
Get the browser for devs who care
polypane.app
November 25, 2025 at 9:11 AM
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Reposted by Polypane. For devs who care
Literally using @polypane.app right now to check my Fluid Responsive Typography across multiple devices at a glance.
This is a massive bargain - buy it!
This is a massive bargain - buy it!
November 25, 2025 at 10:37 AM
Literally using @polypane.app right now to check my Fluid Responsive Typography across multiple devices at a glance.
This is a massive bargain - buy it!
This is a massive bargain - buy it!
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Polypane Black Friday | Polypane
Get the browser for devs who care
polypane.app
November 25, 2025 at 9:11 AM
✨ Our Black Friday sale starts NOW.
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Get a 22% lifetime discount on yearly plans (individuals and teams!)
This is the *only* promotion we run all year. If you’ve been waiting, now is the time. polypane.app/black-friday/
Some users reported issues opening Polypane with other applications as of 27. We fixed the bug causing that and now 27.0.2 is out too:
polypane.app/blog/polypan...
polypane.app/blog/polypan...
Polypane 27: Projects, a Snippets Panel and Chromium 142 | Polypane
Polypane 27 is out! This release brings a new project-focused workflow, a new snippets panel, improved DOM editing and is built on Chromium 142. Here's…
polypane.app
November 24, 2025 at 12:05 PM
Some users reported issues opening Polypane with other applications as of 27. We fixed the bug causing that and now 27.0.2 is out too:
polypane.app/blog/polypan...
polypane.app/blog/polypan...
Reposted by Polypane. For devs who care
Just got reminded about @polypane.app's Safari helper extension.
All extension descriptions have a blurb explaining Polypane is a separate app + what it does, but Apple didn't allow me to run that copy.
So for Safari it says "What Polypane is can not be explained. Literally."
That was accepted.
All extension descriptions have a blurb explaining Polypane is a separate app + what it does, but Apple didn't allow me to run that copy.
So for Safari it says "What Polypane is can not be explained. Literally."
That was accepted.
November 24, 2025 at 8:45 AM
Just got reminded about @polypane.app's Safari helper extension.
All extension descriptions have a blurb explaining Polypane is a separate app + what it does, but Apple didn't allow me to run that copy.
So for Safari it says "What Polypane is can not be explained. Literally."
That was accepted.
All extension descriptions have a blurb explaining Polypane is a separate app + what it does, but Apple didn't allow me to run that copy.
So for Safari it says "What Polypane is can not be explained. Literally."
That was accepted.
We just released Polypane 27.0.1 with a fix for the crashes that could happen on MacOS systems. We also snuck in a couple of other fixes!
To solve this quickly we had to disable Widevine DRM, which will be re-enabled in a future release.
polypane.app/blog/polypan...
To solve this quickly we had to disable Widevine DRM, which will be re-enabled in a future release.
polypane.app/blog/polypan...
November 21, 2025 at 3:07 PM
We just released Polypane 27.0.1 with a fix for the crashes that could happen on MacOS systems. We also snuck in a couple of other fixes!
To solve this quickly we had to disable Widevine DRM, which will be re-enabled in a future release.
polypane.app/blog/polypan...
To solve this quickly we had to disable Widevine DRM, which will be re-enabled in a future release.
polypane.app/blog/polypan...
Reposted by Polypane. For devs who care
Polypane 27 is here!
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane 27: Projects, a Snippets Panel and Chromium 142 | Polypane
Polypane 27 is out! This release brings a new project-focused workflow, a new snippets panel, improved DOM editing and is built on Chromium 142. Here's…
polypane.app
November 20, 2025 at 9:10 AM
Polypane 27 is here!
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane 27 is here!
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane 27: Projects, a Snippets Panel and Chromium 142 | Polypane
Polypane 27 is out! This release brings a new project-focused workflow, a new snippets panel, improved DOM editing and is built on Chromium 142. Here's…
polypane.app
November 20, 2025 at 9:10 AM
Polypane 27 is here!
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Polypane now has a projects-based workflow, a new snippets panel, line numbers in the style panel (we know!), a new macOS icon and so much more.
polypane.app/blog/polypan...
Reposted by Polypane. For devs who care
Using “chrome-devtools-mcp” With Polypane, by @polypane.app:
https://polypane.app/blog/using-chrome-devtools-mcp-with-polypane/
#polypane #browsers #devtools #mcp #chrome
https://polypane.app/blog/using-chrome-devtools-mcp-with-polypane/
#polypane #browsers #devtools #mcp #chrome
Using chrome-devtools-mcp with Polypane | Polypane
The recently released chrome-devtools-mcp allows you to connect your coding agent (like GitHub Copilot) to a running Chromium instance to inspect and verify…
polypane.app
November 18, 2025 at 8:40 PM
Using “chrome-devtools-mcp” With Polypane, by @polypane.app:
https://polypane.app/blog/using-chrome-devtools-mcp-with-polypane/
#polypane #browsers #devtools #mcp #chrome
https://polypane.app/blog/using-chrome-devtools-mcp-with-polypane/
#polypane #browsers #devtools #mcp #chrome
We're tracking an issue where new installs of Polypane don't work because the Widevine DRM servers return an error.
Sorry about that. We hope it's resolved soon, and will implement a workaround for that situation in the next release.
Existing installations have the DRM license and will work.
Sorry about that. We hope it's resolved soon, and will implement a workaround for that situation in the next release.
Existing installations have the DRM license and will work.
November 18, 2025 at 11:20 AM
We're tracking an issue where new installs of Polypane don't work because the Widevine DRM servers return an error.
Sorry about that. We hope it's resolved soon, and will implement a workaround for that situation in the next release.
Existing installations have the DRM license and will work.
Sorry about that. We hope it's resolved soon, and will implement a workaround for that situation in the next release.
Existing installations have the DRM license and will work.
Reposted by Polypane. For devs who care
The chrome-devtools-mcp team made updates to it and to Puppeteer to better support Polypane (and other @electronjs.org apps).
Despite my general qualms about Generative AI, I think that's pretty cool!
Despite my general qualms about Generative AI, I think that's pretty cool!
Chrome-devtools-mcp allows you to connect coding agent like GitHub Copilot and Cursor to Polypane to inspect and get feedback across all your viewports.
Learn how:
polypane.app/blog/using-c...
Learn how:
polypane.app/blog/using-c...
Using chrome-devtools-mcp with Polypane | Polypane
The recently released chrome-devtools-mcp allows you to connect your coding agent (like GitHub Copilot) to a running Chromium instance to inspect and verify…
polypane.app
November 10, 2025 at 2:26 PM
The chrome-devtools-mcp team made updates to it and to Puppeteer to better support Polypane (and other @electronjs.org apps).
Despite my general qualms about Generative AI, I think that's pretty cool!
Despite my general qualms about Generative AI, I think that's pretty cool!
Chrome-devtools-mcp allows you to connect coding agent like GitHub Copilot and Cursor to Polypane to inspect and get feedback across all your viewports.
Learn how:
polypane.app/blog/using-c...
Learn how:
polypane.app/blog/using-c...
Using chrome-devtools-mcp with Polypane | Polypane
The recently released chrome-devtools-mcp allows you to connect your coding agent (like GitHub Copilot) to a running Chromium instance to inspect and verify…
polypane.app
November 10, 2025 at 2:14 PM
Chrome-devtools-mcp allows you to connect coding agent like GitHub Copilot and Cursor to Polypane to inspect and get feedback across all your viewports.
Learn how:
polypane.app/blog/using-c...
Learn how:
polypane.app/blog/using-c...
Reposted by Polypane. For devs who care
Last year we wrote an article on all the ways position:sticky can fail and to this day it remains in the top 10 of weekly most visited pages.
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck: all the ways position:sticky can fail | Polypane
CSS's position: sticky is a dream come true for web developers. It allows elements to switch between relative and fixed positioning based on the scroll…
polypane.app
November 6, 2025 at 8:56 AM
Last year we wrote an article on all the ways position:sticky can fail and to this day it remains in the top 10 of weekly most visited pages.
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Last year we wrote an article on all the ways position:sticky can fail and to this day it remains in the top 10 of weekly most visited pages.
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck: all the ways position:sticky can fail | Polypane
CSS's position: sticky is a dream come true for web developers. It allows elements to switch between relative and fixed positioning based on the scroll…
polypane.app
November 6, 2025 at 8:56 AM
Last year we wrote an article on all the ways position:sticky can fail and to this day it remains in the top 10 of weekly most visited pages.
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Getting stuck with sticky? This is the post for you.
polypane.app/blog/getting...
Right after (experimental) support for field-sizing landed in chromium 120 back in December 2023 we immediately made good use of it in Polypane and wrote about it and the alternatives we used before:
polypane.app/blog/field-s...
It's too bad that end of 2025 it's still chromium-only.
polypane.app/blog/field-s...
It's too bad that end of 2025 it's still chromium-only.
Field-sizing just works! | Polypane
field-sizing is wild. It's a new CSS property that makes input , textarea and select automatically scale to the size of their content. That means it…
polypane.app
November 3, 2025 at 8:41 AM
Right after (experimental) support for field-sizing landed in chromium 120 back in December 2023 we immediately made good use of it in Polypane and wrote about it and the alternatives we used before:
polypane.app/blog/field-s...
It's too bad that end of 2025 it's still chromium-only.
polypane.app/blog/field-s...
It's too bad that end of 2025 it's still chromium-only.
Reposted by Polypane. For devs who care
Here's a cool photo that Polypane user Marcos sent us recently.
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
October 27, 2025 at 4:30 PM
Here's a cool photo that Polypane user Marcos sent us recently.
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
Be like STEEEEEEEEEVE.
Took me a while, but I've now taken the plunge to improve my web dev workflow by getting a @polypane.app subscription! 🥳 🔥 🤩 polypane.app
Polypane. The browser for web developers who care about their craft and build for everyone.
Polypane is a powerful desktop browser for web developers, built to streamline responsive design, accessibility, and SEO testing, all in one place.
polypane.app
October 28, 2025 at 12:35 PM
Be like STEEEEEEEEEVE.
Here's a cool photo that Polypane user Marcos sent us recently.
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
October 27, 2025 at 4:30 PM
Here's a cool photo that Polypane user Marcos sent us recently.
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
He has a Logitech Creative Console all decked out to quickly switch workspaces, layouts and to reload or open the command bar for more advances tasks. Such a nice productivity boost!
Should we make available a set of icons to use?
Reposted by Polypane. For devs who care
Just improved my web dev workflow by getting a @polypane.app subscription! 🥳 🔥 🤩 polypane.app
Polypane. The browser for web developers who care about their craft and build for everyone.
Polypane is a powerful desktop browser for web developers, built to streamline responsive design, accessibility, and SEO testing, all in one place.
polypane.app
October 23, 2025 at 6:25 PM
Just improved my web dev workflow by getting a @polypane.app subscription! 🥳 🔥 🤩 polypane.app
Reposted by Polypane. For devs who care
Only *cool* browsers contribute back to the platform. 😎
Can't wait to see how a company with a $600 billion valuation, that pushed out a new web browser, only for macOS, contributes some of their stacks of money back to the web platform.
a group of people are standing in front of a white truck .
ALT: a group of people are standing in front of a white truck .
media.tenor.com
October 22, 2025 at 9:31 AM
Only *cool* browsers contribute back to the platform. 😎
Reposted by Polypane. For devs who care
Market research!
How often do you use one of those "what is my browser" websites (personally or sent to someone)?
Would you use one that isn't littered with ads or has a design from 1995? What features should it have?
What if you could also use it to collect info to emulate devices in Polypane?
How often do you use one of those "what is my browser" websites (personally or sent to someone)?
Would you use one that isn't littered with ads or has a design from 1995? What features should it have?
What if you could also use it to collect info to emulate devices in Polypane?
October 22, 2025 at 1:42 PM
Market research!
How often do you use one of those "what is my browser" websites (personally or sent to someone)?
Would you use one that isn't littered with ads or has a design from 1995? What features should it have?
What if you could also use it to collect info to emulate devices in Polypane?
How often do you use one of those "what is my browser" websites (personally or sent to someone)?
Would you use one that isn't littered with ads or has a design from 1995? What features should it have?
What if you could also use it to collect info to emulate devices in Polypane?