📣 The finale of What the Spec?! is here 🥳 We wrap season 1 with @kilianvalkhof.com & discuss the ins and outs of building an indie browser!! Available on your fav podcast app & RSS. Apple: apple.co/3KR1du4 Spotify: open.spotify.com/episode/7uwM... Transcript: lolaslab.co/what-the-spe...

Our last release of the year (no promises) is out! Polypane 27.1 supercharges Portals with console and snippet support, adds a ton of new features to projects and the elements panel and boosts performance due to smarter outline parsing. polypane.app/blog/polypan...

Our last release of the year (no promises) is out! Polypane 27.1 supercharges Portals with console and snippet support, adds a ton of new features to projects and the elements panel and boosts performance due to smarter outline parsing. polypane.app/blog/polypan...

This is in 40 minutes, come hang out!

We're working on SCIM support through SAML SSO. If you know some of those words and you want to help us test this, reach out!

Follow along with @nickyt.online and @kilianvalkhof.com as they set up the Chrome Dev Tools MCP to work with Polypane!

Coming soon: navigate the elements panel tree using your arrow keys. The custom-built Polypane elements panel lets you inspect and edit Elements across all viewports in one go.

🚨Final Call🚨 The Polypane Black Friday deal ends in a few hours. If you want to build better websites faster (and save money doing it), this is your moment. 22% off. Ends today. 👉 polypane.app/black-friday/

*Last day.* The Black Friday sale ends tonight. Get *22% off Polypane* (Lifetime discount on yearly plans). Go go go! 🏃 polypane.app/black-friday/

*Last day.* The Black Friday sale ends tonight. Get *22% off Polypane* (Lifetime discount on yearly plans). Go go go! 🏃 polypane.app/black-friday/

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/

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/

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/

Polypane is legit the best dev browser out there. The Black Friday deal is so generous too 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/

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/

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.

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/

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/

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/

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/

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.

I only ever do these once a year so if you've been on the fence, now's your chance!

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

✨ 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/

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!

✨ 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/

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...

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.

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...

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 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...

Using “chrome-devtools-mcp” With Polypane, by @polypane.app: 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.

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!

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...

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...

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...

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.

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?

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?

Just improved my web dev workflow by getting a @polypane.app subscription! 🥳 🔥 🤩 polypane.app

Only *cool* browsers contribute back to the platform. 😎

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?

Share your insights!

This year, Igalia did some work to improve mobile-device emulation in @polypane.app by adding features to Chromium that could eventually improve Chrome itself, as well as API work to improve Electron. Learn more about the details here: www.igalia.com/2025/10/21/H...

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