A browser not for consumers, but for creators.

Created out of frustration with the developer experience that modern browsers give, Polypane is the first browser that really puts web creators first. Browser like Google Chrome and Mozilla Firefox are really good at browsing the web but they're not built for web development. For a tool that a web developer will spent nearly half his time on, we think that's weird.

Just like you're not using a PDF editor or word processor to write code or using MS Paint to design websites, we think you shouldn't use a consumer browser either. In Polypane, every feature helps you as a web creator become better and more efficient at your job.

Polypane is the only browser that lets you develop for the web on all viewports and devices at once and gives you the best overview of them. It's the only browser with build-in features like breakpoint detection, css layout debugging and multi-pane screen shots. All these features are there you help you get more done, faster.

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.

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. Another example of a workflow which considers the full context of the target medium.

Colm TuiteCreator of Modulz

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.

Roy van RooijenDesign Tools Network

The creator

Polypane is developed by Kilian Valkhof. At 30 years old Kilian has been developing websites and applications since the age of 10 and started his first company at the age of 16, eventually growing it to a 15 person design agency.

Having directly designed and developed well over a hundred websites for startups, multinationals and governmental agencies, Kilian is intimately aware of the inefficiencies in the process of creating websites and apps. Leaving his design agency at the beginning of 2019, he launched a new company called Firstversionist with the goals of empowering developers, designers and other creators with powerful software that helps them get work done faster and better. Polypane is the first project to come out of that.

Kilian is an active open source contributer with applications like FromScratch, a simple but smart note taking application used by over 6000 people worldwide and Trimage, image compression software available on Debian and Ubuntu. He is an active contributer to the Electron project and maintains the "electron-to-chromium" library that sees over 8 million weekly downloads.

Kilian lives in the Netherlands near The Hague.

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