Polypane

This is in 30 minutes! Viewers can vote on a people’s choice award. See my pitch and come support me 🙏

Built right into @polypane.app by turning on the placeholdifier debug tool!

polypane.app/docs/debug-t...

Experimental Chromium Web Platform Features | Polypane Experimental web platform features are features that are not yet part of the official web platform specification but are available in Polypane

We just improved our overview of Experimental Chromium web platform features with shareable URLs!

If you want to know what CSS features have been (experimentally) introduced in which recent version, check out this link:

polypane.app/experimental...

Experimental Chromium Web Platform Features | Polypane Experimental web platform features are features that are not yet part of the official web platform specification but are available in Polypane

We just improved our overview of Experimental Chromium web platform features with shareable URLs!

If you want to know what CSS features have been (experimentally) introduced in which recent version, check out this link:

polypane.app/experimental...

Polypane 25.1: DRM support and bug fixes | Polypane Polypane 25.1 is now available, and it brings DRM support through Widevine, a new reopen last closed tab feature and a number of improvements and fixes. What's…

We released a new version yesterday! Which means today we have a bugfix release 🫣

DRM on macOS didn't always work, but now it does! We also made various improvements to our contrast checker and web component inspection in the elements panel.

polypane.app/blog/polypan...

Polypane 25.1: DRM support and bug fixes | Polypane Polypane 25.1 is now available, and it brings DRM support through Widevine, a new reopen last closed tab feature and a number of improvements and fixes. What's…

Polypane 25.1 is out!

- DRM support: use Netflix, Spotify etc in Polypane
- Re-open closed tabs feature
- Bug fixes and improvements to the elements panel, outlines, form autofilling and more.

polypane.app/blog/polypan...

Polypane on the Winging It Live stream | Polypane Last week I joined Miriam Suzanne and James Stuckey Weber on the Winging It Live stream to talk about tools for developers, and Polypane in particular. We had a…

Kilian was on the @oddbird.dev Winging It Live stream to chat about Polypane and devtools. Watch it back here: polypane.app/blog/polypan...

Two badges with the names: GetApp Category leaders 2025 Capterra shorrtlist 2025 With the Polypane logo below them

We're proud to add two new awards to our ever-growing list. This time we're recognised as Category leaders by GetApp and we're on the Capterra shortlist, both for (web) app development 🙌

See all our awards at polypane.app/accolades/

Just finished a backlog item in 15 minutes (docs included) that's been on the @polypane.app backlog since 2020 😅

It wouldn't have been 15 minutes back then. Everything I built in the past 5 years helped me built this in 15 minutes.

We had a few starts and stalls around this (shipping it two months ago would have meant a less secure browser, which we didn't want to do)

But....it's ready! We managed to work with Castlabs to ship this without compromising other areas of security.

Coming to a production release near you soon!

Two badges with the names: GetApp Category leaders 2025 Capterra shorrtlist 2025 With the Polypane logo below them

We're proud to add two new awards to our ever-growing list. This time we're recognised as Category leaders by GetApp and we're on the Capterra shortlist, both for (web) app development 🙌

See all our awards at polypane.app/accolades/

This is a little over 4 hours from now! Come and join us :)

HTML Form inspector | Polypane Paste your HTML form code to get a detailed overview of its structure and fields.

Polypane here with another really useful tool. They even found issues with our forms while they were testing it!

Will you join us? Thursday next week!

Polypane showing two mobile panes showing sarajoy.dev. The elements panel is visible, and an HTML comment showing an ASCII representation of Sara is visible.

Here's a fun thing we snuck into the latest patch release: support for HTML comments in the elements panel!

Check out this lovely ASCII art on @sjoy.lol's website :)

Polypane 25: Browser Extensions With Manifest V3, Form Outlines, and Chromium 138, by @polypane.app:

https://polypane.app/blog/polypane-25-browser-extensions-with-manifest-v-3-form-outlines-and-chromium-138/

#releasenotes #polypane #browsers

Polypane 25: browser extensions with Manifest v3, form outlines and Chromium 138 | Polypane Polypane 25 is here! We've updated our browser extension implementation to support Manifest v3 so we support a ton more extensions, there's a new Form outline…

We just released Polypane 25.0.1 with some bug fixes and an update to the elements panel: it now also lets you inspect and edit HTML comments!

polypane.app/blog/polypan...

Polypane 25: browser extensions with Manifest v3, form outlines and Chromium 138 | Polypane Polypane 25 is here! We've updated our browser extension implementation to support Manifest v3 so we support a ton more extensions, there's a new Form outline…

We just released Polypane 25.0.1 with some bug fixes and an update to the elements panel: it now also lets you inspect and edit HTML comments!

polypane.app/blog/polypan...

Polypane 25: browser extensions with Manifest v3, form outlines and Chromium 138 | Polypane Polypane 25 is here! We've updated our browser extension implementation to support Manifest v3 so we support a ton more extensions, there's a new Form outline…

Head over to polypane.app/blog/polypan... to learn more about our target size tooling update and dozens of other features and improvements!

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!

HTML Form Inspector: inspect and debug your forms online | Polypane HTML forms are notoriously hard to get right. They require a lot of boilerplate HTML and even small mistakes can lead to frustrating user experiences like not…

HTML Form Inspector: inspect and debug your forms online

Learn more about how our new online form testing tool works!

polypane.app/blog/html-fo...

HTML Form Inspector: inspect and debug your forms online | Polypane HTML forms are notoriously hard to get right. They require a lot of boilerplate HTML and even small mistakes can lead to frustrating user experiences like not…

HTML Form Inspector: inspect and debug your forms online

Learn more about how our new online form testing tool works!

polypane.app/blog/html-fo...

Polypane is always adding cool stuff. I really can't imagine developing anything without it. I give it my highest recommendation. Give it a whirl.

HTML Form inspector | Polypane Paste your HTML form code to get a detailed overview of its structure and fields.

We also launched a second thing! While building our form outline feature, we found out there were no online tools to check form structure! 👎

We took our form analysing code and made a free online tool. 🙌 Test your forms online, then head over to Polypane to fix them. polypane.app/form-inspect...

Polypane 25: browser extensions with Manifest v3, form outlines and Chromium 138 | Polypane Polypane 25 is here! We've updated our browser extension implementation to support Manifest v3 so we support a ton more extensions, there's a new Form outline…

Polypane 25 is here, and it's a nice one 😎

- Browser extensions with manifest v3 support
- Forms outline with errors and suggestions
- Chromium 138
- Lots of quality-of-life features

polypane.app/blog/polypan...

HTML Form inspector | Polypane Paste your HTML form code to get a detailed overview of its structure and fields.

We also launched a second thing! While building our form outline feature, we found out there were no online tools to check form structure! 👎

We took our form analysing code and made a free online tool. 🙌 Test your forms online, then head over to Polypane to fix them. polypane.app/form-inspect...

Polypane 25: browser extensions with Manifest v3, form outlines and Chromium 138 | Polypane Polypane 25 is here! We've updated our browser extension implementation to support Manifest v3 so we support a ton more extensions, there's a new Form outline…

Polypane 25 is here, and it's a nice one 😎

- Browser extensions with manifest v3 support
- Forms outline with errors and suggestions
- Chromium 138
- Lots of quality-of-life features

polypane.app/blog/polypan...

Polypane, The browser for ambitious web developers A stand-alone browser and devtool with everything you need to build better responsive, accessible and performant web sites and web apps in less time.

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

Experimental Chromium Web Platform Features | Polypane Experimental web platform features are features that are not yet part of the official web platform specification but are available in Polypane

Direct link: polypane.app/experimental...

The web platform is moving pretty fast, and keeping an eye on things so you know when a feature is done enough for you to check out is pretty important.

Check out this excellent overview by @sachagreif.com, which includes our experimental web platform features overview (and some very kind words ❤️)