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/
Reposted by Polypane. For devs who care
Tomorrow's the last day!
After 7 years of selling courses, I'm finally doing a Black Friday sale.
I'd held off for from doing sales in general for all this time, but had some smart people get me on board with it, so I figured if I'm going to do it, I'll go big:
40% off + Flexbox Simplified for free.
I'd held off for from doing sales in general for all this time, but had some smart people get me on board with it, so I figured if I'm going to do it, I'll go big:
40% off + Flexbox Simplified for free.
November 30, 2025 at 3:40 PM
Tomorrow's the last day!
Weekend project? 🛠️
Make sure your site looks great on every screen size.
Polypane shows you mobile, tablet, and desktop viewports side-by-side. Fix a bug in one, see it fixed in all.
Grab our Friday deal this weekend:
👉 polypane.app/black-friday/
Make sure your site looks great on every screen size.
Polypane shows you mobile, tablet, and desktop viewports side-by-side. Fix a bug in one, see it fixed in all.
Grab our Friday deal this weekend:
👉 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 30, 2025 at 1:39 PM
Weekend project? 🛠️
Make sure your site looks great on every screen size.
Polypane shows you mobile, tablet, and desktop viewports side-by-side. Fix a bug in one, see it fixed in all.
Grab our Friday deal this weekend:
👉 polypane.app/black-friday/
Make sure your site looks great on every screen size.
Polypane shows you mobile, tablet, and desktop viewports side-by-side. Fix a bug in one, see it fixed in all.
Grab our Friday deal this weekend:
👉 polypane.app/black-friday/
Reposted by Polypane. For devs who care
110.
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 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 29, 2025 at 9:55 AM
110.
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
110.
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 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 29, 2025 at 9:55 AM
110.
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
That’s the number of user requests we implemented in 2025 (...I might have gotten nerd-sniped into a few of them 😅).
Polypane is built *with* and *for* our community. Join us today for 22% off 👉 polypane.app/black-friday/
Reposted by Polypane. For devs who care
Polypane is legit the best dev browser out there. The Black Friday deal is so generous too polypane.app/black-friday/
November 28, 2025 at 9:12 AM
Polypane is legit the best dev browser out there. The Black Friday deal is so generous too polypane.app/black-friday/
Reposted by Polypane. For devs who care
It's Black Friday! 🏷️
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 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 28, 2025 at 10:11 AM
It's Black Friday! 🏷️
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
It's Black Friday! 🏷️
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 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 28, 2025 at 10:11 AM
It's Black Friday! 🏷️
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
We released *18 versions* and *42 new major features* in 2025 alone.
From video recording to advanced emulation, Polypane is the most powerful tool for web developers.
Get your *22% lifetime discount* today:
👉 polypane.app/black-friday/
Reposted by Polypane. For devs who care
When you don’t code often, it’s easy to forget how useful @polypane.app is for web development. It highlights issues that might get overlooked on a first pass, and it makes testing and debugging a piece of cake. Forever grateful for your effort, @kilianvalkhof.com!
November 28, 2025 at 8:55 AM
When you don’t code often, it’s easy to forget how useful @polypane.app is for web development. It highlights issues that might get overlooked on a first pass, and it makes testing and debugging a piece of cake. Forever grateful for your effort, @kilianvalkhof.com!
Already have a Polypane license? Then definitely check out Sara’s course, it’s amazing.
You can find the discount on the deals page on our dashboard.
You can find the discount on the deals page on our dashboard.
[1/2] Oh. A PSA for everyone who has a @polypane.app subscription:
You already get a special discount on the Practical Accessibility course for being a Polypane user. You should be able to find the discount when you log in using your account.
Discounts are cumulative during this Black Friday...
You already get a special discount on the Practical Accessibility course for being a Polypane user. You should be able to find the discount when you log in using your account.
Discounts are cumulative during this Black Friday...
November 27, 2025 at 3:45 PM
Already have a Polypane license? Then definitely check out Sara’s course, it’s amazing.
You can find the discount on the deals page on our dashboard.
You can find the discount on the deals page on our dashboard.
Reposted by Polypane. For devs who care
Did you know Polypane now contributes directly to Chromium? 🤯
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 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 27, 2025 at 8:07 AM
Did you know Polypane now contributes directly to Chromium? 🤯
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
Did you know Polypane now contributes directly to Chromium? 🤯
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 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 27, 2025 at 8:07 AM
Did you know Polypane now contributes directly to Chromium? 🤯
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
In 2025 we added better emulation for safe-area-insets and svh. Spot layout issues on devices without leaving your desktop.
Get the browser that pushes the web forward (for *22% less*):
👉 polypane.app/black-friday/
Build responsive and accessible websites in half the time? Yes please. 🙋♀️
Polypane is the browser built for developers.
✅ Sync scrolling & interactions
✅ 80+ accessibility tests
✅ Social media previews
Get it for *22% off* this week only:
👉 polypane.app/black-friday/
Polypane is the browser built for developers.
✅ Sync scrolling & interactions
✅ 80+ accessibility tests
✅ Social media previews
Get it for *22% off* this week only:
👉 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 26, 2025 at 12:36 PM
Build responsive and accessible websites in half the time? Yes please. 🙋♀️
Polypane is the browser built for developers.
✅ Sync scrolling & interactions
✅ 80+ accessibility tests
✅ Social media previews
Get it for *22% off* this week only:
👉 polypane.app/black-friday/
Polypane is the browser built for developers.
✅ Sync scrolling & interactions
✅ 80+ accessibility tests
✅ Social media previews
Get it for *22% off* this week only:
👉 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