PolypaneThe browser for
responsive design
A browser with smart tools to create and test responsive websites and apps twice as fast
Used by agencies, developers, designers and QA world-wide.
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Trusted by teams worldwide
Firstversionist creates software used by companies like:
Your favorite code editor and design software help you get work done.
So should your browser.
Stop resizing your browser
You can make your site or web app look great in one go with Polypane's side-by-side view of all devices. No resizing needed.
Sync all your actions
Interacting with one device means interacting with all of them. It just works.
Detect CSS breakpoints. Automatically
Polypane gives you insight into your CSS breakpoints like no other browser.
Powerful devtools
Devtools like you're used to, with support for devtools extensions too.
Live reloading built in
Your site updates with every change you make. CSS and images are updated without a page refresh, like magic.
Light and dark modes
Polypane comes in a light and dark theme, so it always fits in with your desktop.
True full page screenshots
You want best in class screenshots, and we have them. No one handles viewport units and fixed element as well as us.
That's not all
With more features like different modes, layout debugging, customisable presets, workspace favorites and global zooming, Polypane offers everything you need.
Build high quality websites in half the time
Start your free 14 day trialOur customers love us
Polypane is easily one of the most useful tools for modern web designers and developers.
Stephen HayAuthor of Responsive Design Workflow
Polypane are building a smart design environment where you can preview your designs across a multitude of browsers, devices and viewports.
Colm TuiteCreator of Modulz
Discovering Polypane was a game-changer to how I develop responsive websites. I couldn't imagine going back to using the Chrome inspector.
Julian KeenaghanCTO at Beam
If you’re developing a website, Polypane comes in quite handy. Already an essential tool.
Roy van RooijenDesign Tools Network
An invaluable tool for responsive website testing. A must-have for front-end developers.
Marc BergerWeb Developer
Polypane quickly became an indispensable part of my workflow. With a tool like this, you have no excuse not to create great, responsive experiences!
Richard GoodwinDeveloper & Podcaster at Comedywham
A vital part of the web development toolkit for testing and troubleshooting responsive design.
John CamachoWeb Developer at Pixelstation
Trusted by teams worldwide
Firstversionist creates software used by companies like:
