Everything you need in one developer tool.
Powerful devtools, multiple synced viewports, full-height screenshots, over two dozen debug tools, device and media query emulation, built-in live-reloading and more.
From mobile screens to 5K monitors, get all viewports in one screen.
Over 80 accessibility tests, 14 different emulators and two dozen tools.
Side by side
Dark and light, reduced motion, screen and print. No more manual switching!
Great companies using Polypane.
Here's some of the features that Polypane comes with:
As many viewports as you need.
No need to manually resize and test websites screen-by-screen. Get all your viewports in one overview, no browser resizing needed.
Mobile screens, 5K monitors, all your CSS breakpoints or any size you want.
All in sync.
Scrolling, clicking, hovers, shortcuts and forms input are synced across all viewports.
Don't test viewports or devices one-by-one, check them all at once.
Edit all viewports.
The unified console and element inspector make it easy to edit your site in all viewports. Quickly see if your style or copy works on all screen sizes.
Developers and designers love Polypane.
Here's what they say:
Polypane is easily one of the most useful tools for modern web designers and developers.
It is convenient seeing your work in multiple responsive views at the same time. Love it, 💯
This thing is FAST and the synchronized scrolling works amazingly. Prepare to be impressed.
Polypane is fast, helps me catch issues and the meta information preview is awesome.
Using Polypane and woah this is awesome! It’s really slick and fast! I was just 5 minutes in and I already fixed a bug.
Polypane is a smart design environment where you can preview your designs across devices and viewports.
Fully featured with useful tools for making responsive & accessible websites.
Social media previews.
Pixel-perfect previews of social media sharing cards, for Twitter, Facebook, Slack, LinkedIn, Discord, Telegram and Google.
Live and hot reloading.
Built-in live reloading for anything from plain old HTML to Wordpress to React or Vue. No config or server needed.
Powerful developer tools.
Comes with Chromium devtools and support for extensions like React, Vue, Angular and Svelte.
Dark mode testing.
Test light and dark mode side-by-side in the same view. No need to change your entire operating system!
Click a single button to create a full-height screenshot of your page or an overview screenshot of all panes.
…And that's not all.
Polypane has everything you need to make awesome web experiences.