Polypane Black Friday deal

Developer browser for macOS, Windows and Linux built for responsive design and accessibility testing.

Polypane is a Chromium-based browser designed for developers, designers, quality assurance testers, and marketers. It allows people who build websites to test pages across multiple synchronized viewports at the same time, from mobile displays to 5K monitors. Breakpoints, scrolling, and user preferences like dark mode and reduced motion update together on one screen. The browser includes built-in tools for accessibility checks, social media link previews, selector specificity highlighting, and a playground feature that opens directories as HTTPS links. Before you buy, check out the product during its 14-day free trial to see if it fits your workflow. The trial does not require a credit card.

Black Friday 2025 offer: 22% off all yearly subscriptions.