A browser that makes you faster & better
Your favorite text editor and design software help you get work done. So should your browser.
View your site at all sizes
Stop resizing your browser. Use Polypane to see the full range of viewports for your site in a single overview. Choose from popular device sizes, your css breakpoints or resize panes manually.
All your actions are synced
Interact with one pane and all other panes will automatically follow your actions. Scrolling, clicks and hovers are automatically shared between panes. Easily verify that your site works as intended on all viewports.
With a single click you can generate a screenshot with a full overview of your site at all screen sizes and share it with anyone.
Layout debugging, CSS stress-testing & Chromium-based devtools. Polypane has all the tools you need to create modern websites and apps.
Discover how much time you can save by having a complete overview of your site or app.Explore features
Not convinced a development browser works for you?
Read Why you need a development browser.
What people are saying about Polypane
Designers should confront themselves with the reality of different viewports as early and often as possible. Polypane encourages this behaviour, and makes it easy to do. It's easily one of the most useful tools for modern web designers and developers.
Polypane are building a smart design environment where you can preview your designs across a multitude of browsers, devices and viewports. Another example of a workflow which considers the full context of the target medium.
If you’re developing a website, Polypane comes in quite handy. Test multiple viewports at the same time, no more browser window resizing, and keep all panes in sync when scrolling in one view. In beta, but already an essential tool.