The browser for ambitious web devs.
A desktop browser with all the tools you need to build responsive, accessible and performant sites.

All the tools you need to Build, Debug and Test sites
Develop and test every aspect of your site without context switching. From responsive design, to accessibility, to meta tags and performance, Polypane has you covered.
Responsive design
Mobile screens to 5K monitors, see all viewports in one overview.
Lint as you go
Check your structure, metadata and accessibility. Get instant suggestions.
Side by side views
Test dark and light and more without changing your system settings.
This thing is FAST and the synchronized scrolling works amazingly. Prepare to be impressed.

Polypane is really saving my bacon. Kilian knocked it out of the park, this is my new favorite development tool.

Polypane helped me see a spacing issue between two breakpoints that I wasn’t aware of. Love it 💯

I've started playing around with Polypane and 🤯. It has awesome debugging tools, I'm really impressed.

Everything you do is kept in sync
No matter how many devices you're working with, your actions are mirrored across all of them. Click, scroll, type, hover or edit styles on one and see it happen on all.

Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.
