The missing half of your development environment. Chromium-based workspace for building great websites. Built for web developers who care | Try out for free at https://polypane.app | By @kilianvalkhof.comhttps://bsky.app/profile/polypane.apphttps://bsky.app/profile/polypane.app/post/3mty6jtlyzk2zWe've given our online CSS selector specificity calculator some nice upgrades! - Improved resolution of function nested specificity - Highlighting parts while you type (using OpagueRange + Highlight API) - Explore your selector by hovering over each part Check it out: https://polypane.app/css-specificity-calculator/26 Aug 2026 11:00 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mty6jtlyzk2zhttps://bsky.app/profile/polypane.app/post/3mty6jtlyzk2zWe've given our online CSS selector specificity calculator some nice upgrades! - Improved resolution of function nested specificity - Highlighting parts while you type (using OpagueRange + Highlight API) - Explore your selector by hovering over each part Check it out: https://polypane.app/css-specificity-calculator/26 Aug 2026 11:00 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mty6jtlyzk2zhttps://bsky.app/profile/polypane.app/post/3mtgszd6qns2dPolypane 30 is out! 🤩 🛝 Playgrounds: go from .html to multi-device testing in 3 clicks 🔤 text-scale emulation 📹 recording w/ sound 🌐 Network panel filtering & sorting ✨ Sidepanel browser extensions 🔗 Standard.site validation & previews 🌍 Chromium 152 ⛰️ MORE STILL https://polypane.app/blog/polypane-30-playgrounds-side-panel-extension-api-updated-video-recording-and-chromium-152/19 Aug 2026 13:18 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mtgszd6qns2dhttps://bsky.app/profile/polypane.app/post/3mtjcyjklmk2zCheck out our newest testimonial by @pointc.bsky.social 🤩 See all our latest testimonials here: polypane.app/testimonials/20 Aug 2026 13:10 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mtjcyjklmk2zhttps://bsky.app/profile/polypane.app/post/3mtgszd6qns2dPolypane 30 is out! 🤩 🛝 Playgrounds: go from .html to multi-device testing in 3 clicks 🔤 text-scale emulation 📹 recording w/ sound 🌐 Network panel filtering & sorting ✨ Sidepanel browser extensions 🔗 Standard.site validation & previews 🌍 Chromium 152 ⛰️ MORE STILL https://polypane.app/blog/polypane-30-playgrounds-side-panel-extension-api-updated-video-recording-and-chromium-152/19 Aug 2026 13:18 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mtgszd6qns2dhttps://bsky.app/profile/polypane.app/post/3msum3t3v622j😍 [contains quote post or other embedded content]12 Aug 2026 07:27 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3msum3t3v622jhttps://bsky.app/profile/polypane.app/post/3mrmxil6sl22sRemember these? Well, we made them available online using some fun CSS transitions, and we made them available as free print-ready downloads too! Go play with them here: polypane.app/cheatsheets/ [contains quote post or other embedded content]27 Jul 2026 13:04 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mrmxil6sl22shttps://bsky.app/profile/polypane.app/post/3mr5zlsls5c2yOur helper extension got a new update, adding even more options to help move your workflow over to Polypane. Configure any domain to get a button, full page overlay or let it automatically forward pages to Polypane. Available for all the browsers. Links here: https://polypane.app/docs/helper-extension-for-other-browsers/21 Jul 2026 14:32 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mr5zlsls5c2yhttps://bsky.app/profile/polypane.app/post/3mr3kuurxhk2aPolypane's snippets store has dozens of snippets that add new functionality to Polypane that you can install with a single click. Browse the collection here polypane.app/snippets/20 Jul 2026 15:03 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mr3kuurxhk2ahttps://bsky.app/profile/polypane.app/post/3mr3kuurxhk2aPolypane's snippets store has dozens of snippets that add new functionality to Polypane that you can install with a single click. Browse the collection here polypane.app/snippets/20 Jul 2026 15:03 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mr3kuurxhk2ahttps://bsky.app/profile/polypane.app/post/3mqospxpgzc23we can only agree ❤️ [contains quote post or other embedded content]15 Jul 2026 13:19 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mqospxpgzc23https://bsky.app/profile/polypane.app/post/3mqm2wqodfc2twe're waiting for a fix to Electron to land before we can release the next version but in the mean time we're just building new features. This morning we added support for all the chrome.tabCapture extension APIs, which should bring in support for a whole new range of extensions.14 Jul 2026 11:08 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mqm2wqodfc2thttps://bsky.app/profile/polypane.app/post/3mq57w543qk2cGuess which browser went 29 major versions without having a directory listing feature... Well, not anymore, the upcoming version of Polypane now has a beautiful directory listing! It's fast, responsive, easy to navigate, and part of an exciting new feature we're keeping under wraps for now.08 Jul 2026 13:27 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mq57w543qk2chttps://bsky.app/profile/polypane.app/post/3mozqxxutl22fWe've been experimenting with CSS´s upcoming Random() function to see what it can do. In the mean time we found a few browser crashes and a way to implement random-item() before it actually lands. Best viewed in Polypane 29+ (For now!) https://polypane.app/blog/experimenting-with-random-in-css/24 Jun 2026 10:56 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mozqxxutl22fhttps://bsky.app/profile/polypane.app/post/3mozqxxutl22fWe've been experimenting with CSS´s upcoming Random() function to see what it can do. In the mean time we found a few browser crashes and a way to implement random-item() before it actually lands. Best viewed in Polypane 29+ (For now!) https://polypane.app/blog/experimenting-with-random-in-css/24 Jun 2026 10:56 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mozqxxutl22fhttps://bsky.app/profile/polypane.app/post/3mowzlqcjk22s😍 [contains quote post or other embedded content]23 Jun 2026 08:53 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3mowzlqcjk22shttps://bsky.app/profile/polypane.app/post/3movif77dqk2rWill be published on the Polypane blog, so expect lots of examples and demos! [contains quote post or other embedded content]22 Jun 2026 18:12 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3movif77dqk2rhttps://bsky.app/profile/polypane.app/post/3molhay62yc2aWhat side panel extensions would you like to see in Polypane? Let us know! [contains quote post or other embedded content]18 Jun 2026 18:25 +0000at://did:plc:jdsp2lt772dbud7vxpoup63g/app.bsky.feed.post/3molhay62yc2a